Friday, February 28, 2014

Scuba diving at Isle Royale



For more than 100 years, Isle Royale has been a royal pain in the side of shipping operators trying to deliver cargo to and from Minnesota and Ontario, Canada and back through Lake Superior to locations in the Lower Peninsula.
Though Isle Royale is only 46 miles long and a little less than 9 miles wide, the island has an extensive reef system that extends well beyond its on-land dimensions. Those reefs have snagged 25 shipwrecks that have found their final resting place around the island’s perimeter. So while the beautiful island has historically been a nuisance to the shipping industry, it provides a perfect wonderland for scuba divers. With it’s clear cold water, wrecks remain pristinely preserved.
Russ Haeberle, a member of The Ford Seahorses Scuba Diving Club, visited the island for a tech-diving trip last summer and talked about it in a presentation called “Isle Royale – Lake Superior Paradise” at the Great Lake Shipwreck Festival in Ann Arbor.
“The beautiful thing about Lake Superior is the fact that there are no zebra mussels,” Haeberle said. “You can see the shipwrecks as they were years ago. You lose the detail with zebra mussels as they cover the vessel. With these wrecks, you can still see the grain of the wood.”
The video Haeberle and his group brought back from Isle Royale is stunning. After diving wrecks in the other Great Lakes that are completely coated with a layer of zebra mussels, seeing his video was a real treat. Cargo in the holds, such as farm supplies in one of the featured wrecks, is easily identifiable. And normal Great Lakes visibility looks like it is at least doubled.
“The clarity of the water is great, the visibility is phenomenal,” he said. “The island has protected bays and coves so if weather gets rough, you can go to the other side of the island and get in the lee of the wind and dive a wreck in another location. So you very seldom get blown off the water. When you’re out on the Great Lakes normally, and you’re 10 miles out and there’s bad weather, you can’t get out.”
The guys also spent some time inland, hiking and fishing some of Isle Royale’s many inland lakes. So there is plenty to do on the island while friends or spouses are out diving.
Haeberle and company did several deep dives considered tech dives, and used tri-mix -- helium, oxygen and nitrogen – as their breathable gas. All of the featured dives were at least 150 feet deep.
One of the wrecks they visited was the Kamloops, a 250-foot steel canaler, which sank in 1927. Haeberle called it the holy grail of Isle Royale shipwrecks. The ship lies in 180 to 270 feet of water. It sank in a December storm. She was hauling a load of paper mill machinery, pipe, shoes and tar paper, with a deck load of fencing materials. She was bound for Fort William near Thunder Bay, Ontario, as she passed through the Soo Locks on Dec. 4. She sank in the storm around Dec. 6 It as been described as one of the ghost ships of the Great Lakes because it’s not known how or why the ship sunk, and it lost all hands with few or no traces of what happened. The ship was discovered in 1977 in almost perfect condition. Video from the presentation shows fencing materials still sitting in the hold, along the farming equipment. There is even a coil of rope that sits intact and undisturbed almost 90 years later.
The second ship, the Emperor, is a 525-foot steel freighter that sank in 1947. It sits in 110 to 175 feet of water. It has the distinction of being the last ship to sink at Isle Royale. It met its end due to human navigational errors, and struck Canoe Rocks and sank in 20 to 30 minutes, killing 12 of the crew, including the captain and first mate. Most of the casualties occurred when a lifeboat was sucked under by the ship as it sank. The U.S. Coast Guard Cutter Kimball happened to be nearby and saved some of those who survived the sinking.
The third ship was the engine of the Henry Chisholm, a 270-foot wooden bulk freighter, which sunk in 1898. The engine sits in 115 to 155 feet of water. It was carrying 92,000 bushels of barley from Duluth, Minn. It went down in an October gale. The wreck did not result in any loss of life.
Isle Royale is a true wilderness paradise. It is a Michigan national park and one of the few island national parks in the United States. To get there requires about 11 hours of driving from the Detroit area, plus a three-hour ferry ride from Copper Harbor.
The positive side of the out-of-the-way location is the lack of diver traffic. Haeberle’s group visited in the first week of September and had each wreck to themselves during diving.
The downside is the water, while very clear, is always cold. Dry suit diving is not required, but it is recommended.
“I would not recommend diving their in a wetsuit. You’re going to get very cold,” Haeberle said. “Some of the temperatures we encountered were in the mid to high 30s. That’s even in September, after you’ve had the whole summer to warm up the lake.”
Above is part of my interview with Haeberle and some video from his dives with Superior Diver Charter.

Tuesday, February 18, 2014

33rd Annual Great Lakes Shipwreck Festival set for Feb 22 at Washtenaw Community College

The Great Lakes Shipwreck Festival will be this Saturday, Feb. 22, at WCC.
Here is the link to my story that appeared in the Macomb Daily.  Click here

Wednesday, January 22, 2014

Warren diver helps find Civil War-era shipwreck

Marty Lutz
A diver moves past the sidewheel of the Keystone State.
Marty Lutz describes his hobby as a shipwreck hunter as being akin to that of a skydiver: hours and hours of preparation and training for a few moments of complete exhilaration.
Lutz, 57, of Warren, Michigan, was part of the team that discovered the Keystone State shipwreck in Lake Huron last summer. Undersea Research Associates, headed and funded by David Trotter of Canton, found the wreck the weekend of July 6, 2013, ending the mystery of one of the Great Lakes most opulent ships. Trotter made the find public last December.
The Keystone State was a Civil War-era steamer built for the passenger and package cargo trade. She sank in a furious gale in November 1861. In her day, she was called a “Palace Steamer.” She was rumored to be carrying gold and war materials meant for the Civil War.
For more than 150 years, she remained hidden under a blanket of cold, dark water, eluding generations of search efforts. That’s until Lutz and company found her last summer. She was immediately recognizable by her large sidewheel. She was the last sidewheel-style ship of its size that hadn’t been discovered in the Great Lakes.
“We weren’t even looking for the Keystone State to be honest with you,” Lutz said. “The last eyewitness reports had her going down by the Thumb, and we found her 40-50 miles from there.”
The 288-foot ship is believed to have succumbed to the storm either Nov. 9 or Nov. 10, 1861, and all 33 members of her crew perished. Adding to the mystery is that it took more than a week for the first pieces of debris from the Keystone to appear. The cabin broke off and washed away near Pointe aux Barques at the tip of Michigan’s Thumb.
Since the ship was found further north between Alpena and Harrisville, Lutz said his group figures the crew must have struggled for several horrifying hours on the surface in a desperate attempt to survive.
“When I see a new wreck for first time, I immediately think of circumstances that brought it to that position. I think about the people, what they went through, the struggle they went through. You become very emotional and very respectful,” Lutz said.
While discovering a new shipwreck is exciting, the buildup and preparation leading to the discovery can be anything but. The team began their search in April by plotting a search grid. Searching would go on every weekend, with overnights spent on the water. What follows is a long, tedious, detailed search pattern over the grid.
Little time is spent diving, and lots of time is spent killing time.
“It’s a great time to catch up on your reading, look at your computer, watch movies,” Lutz said. “Sure, there’s lots of boredom, but when you come across a wreck, it gets everyone’s excitement up. It also gets exciting when a freighter goes by in the middle of the night. You don’t want to alter your line, but somebody has to move. But you try to monitor their movement before it becomes an issue.”
With today’s modern improvements to side scan sonar technology, in which images of the floor of the lake are created by bouncing sound waves off the lake bottom and back up to the search vessel, team members top side were quickly able to determine they had discovered a large wreck.
With the trademark sidewheel clearly visible in the sonar, they knew they had found the Keystone State, with the ship and its debris field lying in 150-200 feet of water.
The next step is to establish a setting line, in which a group of divers takes a line down from the research vessel and attaches it to the wreck. Both Lutz and Trotter have said being in that first group is a mixed blessing.
The first group has the honor of being the first group to lay eyes on something that hasn’t been seen for a long time (in this case 150 years), but their first responsibility is attaching the set line. But they only have 15-20 minutes of bottom time before taking more than an hour to ascend back to the surface to off gas and make required decompression stops.
The second group doesn’t get the honor of, metaphorically speaking, getting to the mountaintop first, but they do get to explore the wreck in its entirety and provide the first video record of the lost ship.
“We switch roles back and forth,” Lutz said of the dive team. “And if you set the line fairly quickly, you have some time to explore, so both roles are enjoyable.”
Preparing for such a deep dive in a cold water environment takes time. Between training and prepping equipment, which endures a lot of stress on such a dive, and travelling to the dive site, via car and then boat, Lutz estimates for every minute of bottom time exploring a newly discovered wreck, an hour is spent in preparation. But clearly for Lutz and company, the time and effort are worth it.
“Although you’re down there with other divers, it’s not a team sport really, it’s more of a personal thing,” he said. “You feel, when you are down there, like it’s almost ghostly at times, especially when you see bones or shoes on the wreck. You know people are there and people lost their lives on these wrecks.”
Due to improvements in sonar technology, most shipwreck hunters agree any remaining Great Lakes shipwrecks will probably be discovered in the next 15-20 years. That means the era of Great Lakes shipwreck hunting is quickly coming to an end. After helping discover more than his share of wrecks, Lutz admits he is lucky to be here during such a high time in exploration.
Plans for the 2014 exploration season include examining the debris field of the Keystone State, including searching for the mysterious gold, and continuing the search for two ships that went down during the Great Lakes Storm of 1913: the Argus and the James Carruthers, which both went down in Lake Huron.
To see video of Undersea Research Associates exploration of the Keystone State, click here: http://www.youtube.com/watch?v=MJNmIFUfcf4&authuser=0

Thursday, January 2, 2014

Civil War-era shipwreck discovered in Lake Huron
Photos courtesy of David Trotter Divers examine the wreck of the Keystone State a 288-foot side-wheel steamer that sank in Lake Huron in 1961. One of its large, intact paddlewheels can be seen in the background. The wreck was discovered in July 2013.
One of the most luxurious ships to ply the Great Lakes during the Civil War era has been found in Lake Huron.
The Keystone State, a side-wheel steamer, was found in this summer by veteran shipwreck hunter David Trotter of Canton and his team, Undersea Research Associates.
The search group is an operation funded by Trotter and includes a small group of volunteer divers and support personnel. Trotter and crew found the vessel between Alpena and Harrisville in the northeast portion of the Lower Peninsula, about 40 miles offshore. He said the team found the vessel during the waning days of the search season.
The 288-foot Keystone State was one of the most opulent vessels of her day. She was built for the passenger and package cargo trade, running regular routes from Buffalo to Chicago and Milwaukee. During her heyday, she was called a “Palace Steamer.”
But when she sank in a furious gale in November 1861, she was rumored to be carrying gold and war materials meant for the Civil War.
Prior to pushing off from Detroit on Nov. 8, she was loaded with cargo described as “iron implements (farm implements).” Her destination was reported to be Milwaukee, Wis. Some experts believe the cargo was actually gold and military supplies destined for Civil War battlefields, and these items were deliberately mislabeled to hide the true nature of the cargo manifests from Confederate spies. Trotter said it would have been odd to ship farm implements during the winter.
The Keystone State was last seen off Port Austin near the tip of Michigan’s thumb area in a disabled condition and rolling heavily in rough water.
According to Trotter, records indicate she went down either Nov. 9 or 10, and all 33 crew members perished.
It took more than a week for the first pieces of debris from the Keystone to appear, only adding more questions for those trying to find out where the ship had succumbed. For the last 150 years, her final resting place has been a mystery.
Thanks to recent technological improvements in side-scan sonar technology, more of the deep wrecks that have remained hidden to previous generations of shipwreck hunters are being discovered.
Trotter knew he had found a significant wreck last July not only due to the size of the ship that sonar detected, but also because it had a large sidewheel, which made the ship easy to identify.
“This was the only sidewheel steamer of this size that remained to be discovered in Lake Huron,” Trotter said.
The steamer and its debris field was discovered in 150-200 feet of water, requiring divers with technical skills to descend to such depths. Divers only had 15 to 20 minutes to explore the wreck before spending more than an hour in decompression stops while heading back to the surface.
Trotter, 73, said the team has yet to determine how much of the damage on the ship occurred topside and how much occurred when she hit the bottom.
“Her fight to survive, over many hours on the surface, caused her to have significant damage before sinking,” he said. “Then 150 years on the floor of Lake Huron contributed to gradual deterioration. Yet her large paddlewheels remain intact, and her beautiful ‘walking beam’ steam engine sits upright, and her boilers are still in place.
Trotter said the dive team didn’t find any of the rumored gold or farm implements in the Keystone’s empty cargo hold. It would be common for the ship’s crew to dump cargo in an attempt to keep the ship afloat. But that doesn’t mean he and his crew will stop looking.
“Because of the depth of the wreck site and the remoteness of the area where the ship foundered, exploring and documenting the wreck site takes some time and effort,” he said. “Of course, one always wonders if the story of the gold bullion/coins is true, and perhaps we eventually will make that ‘one of a kind’ discovery. … We still have some exploring to do in the large debris field.”

Tuesday, August 20, 2013

Monday, June 17, 2013

Expedition searches for Griffin shipwreck in Lake Michigan

Potentially big news about the the Griffin, a 17 century ship commanded by French explorer La Salle.
Steve Libert, head of the expedition seeking the explorer La Salle’s lost ship the Griffin, stands on a fishing boat as dive teams prepare to inspect a site Saturday, June 15, 2013, in northern Lake Michigan where he believes the vessel may have sunk.

Michel L’Hour, director of France’s Department of Underwater Archaeological Research, prepares to dive to what explorers believe may be the site of the long-lost ship the Griffin, Saturday, June 15, 2013 in northern Lake Michigan.





Remote Mich. village abuzz over shipwreck search


  JOHN FLESHER
Associated Press

  FAIRPORT, Mich. — Commercial fisherman Larry Barbeau's comings and goings usually don't create much of a stir in this wind-swept Lake Michigan outpost, but in the past few days, his phone jangles the minute he arrives home.

Barbeau's 46-foot boat is the offshore nerve center for an expedition seeking the underwater grave of the Griffin, the first ship of European design to traverse the upper Great Lakes. Built on orders of legendary French explorer Rene Robert Cavelier de la Salle, it ventured from Niagara Falls to Lake Michigan's Green Bay but disappeared during its return in 1679.

Divers this weekend opened a pit at the base of a wooden beam that juts nearly 11 feet from the lake bottom, believing it could be a section of the vessel, the rest presumably entombed in mud. They picked up the pace Monday with more powerful equipment after a weekend of probing showed that whatever is buried is deeper than sonar readings indicated.

U.S. and French experts insist it's too early to say whether there's a shipwreck — let alone the Griffin. But anticipation is building at the prospect of solving a maritime puzzle that's more than three centuries old.

"After we get done for the day, everybody calls or comes to the house and they're like, 'What did you find? What did you see? Can you tell me anything?' " Barbeau said in a Sunday interview aboard his ship, the Viking, which holds crucial expedition equipment, including "umbilical" cables that supply oxygen to divers. "People are really interested and they're excited to see what it is."

His neighbors aren't the only curious ones. The roughly 40-member expedition team consists of archaeologists, historians, boat pilots, divers, an underwater salvage crew and assorted helpers. When not on the water, they stay in cottages and tents by the lake in the unincorporated village of Fairport, in one of the most remote corners of Michigan's Upper Peninsula.

Some are relatives or longtime friends of mission chief Steve Libert, who has sought the ship for three decades. While researching the Griffin long ago, Libert ran across Mike Behrens, a Milwaukee sheet-metal worker whose grandfather had searched the lake for chests of gold that legend says smugglers lost during the Civil War.

"I came up here one year to witness what Steve was doing, and I asked if I could dive with him," said Behrens, 54. "Been doing it ever since. ... I've never met anyone as good at research as him, and he's a very ethical guy. If he says it's the Griffin, I absolutely believe him."

Others have come aboard more recently, including three archaeologists from France who arrived over the weekend.

The hands-on excavation work is being handled by a three-man crew from Great Lakes Diving and Salvage, a Michigan company that ordinarily deals with mundane tasks: repairing pumps or scraping zebra mussels off intake pipes.

"We're basically underwater janitors," said Tom Gouin, vice president of operations. The Griffin, he said, is "like a play job for us. We're loving it."

The team has had to adjust its strategy, as the excavation is proving to be a bigger-than-expected challenge.

Sonar scans in years past had suggested that an object similar to the Griffin's reputed size rested about 2 feet beneath the lake floor. But commercial divers found Friday the bottom caked with a thick layer of invasive, fingernail-sized quagga mussel shells.

After tunneling through mussels, the divers began sucking away gravel and sediments, never hitting anything solid. By Sunday night, the hole reached about 8 feet below the lake bed and it wasn't clear how far down the wooden beam extended or what it might be attached to, said Ken Vrana, the project manager.

But as more is exposed, the post appears increasingly likely to be part of a ship, said Michel L'Hour, director of France's Department of Underwater Archaeological Research.

"We never saw a timber standing like this one," he said. "So it's impossible to imagine it otherwise, so one can expect that there is a hull."

Archaeologists Rob Reedy of Morehead City, N.C., and Misty Jackson of Leslie, Mich., sit on the Viking and sift through material that was found in the sediment, watching for artifacts, from bronze cannons to axes or knives — "anything man-made" that would help identify a ship, Reedy said. Thus far, the only candidate has been a slab of blackened wood about 15 inches long with characteristics suggesting it might have been fashioned by human hands. Its origin remains unknown.

Visitors inspired by the long-lost ship have drifted into the area during the search, including a 9-year-old who wrote a school paper about the Griffin and men in period costumes and handmade canoes who in 1976 re-enacted la Salle's journey across the Great Lakes and down the Mississippi River.

Carl Behrend, a folk singer and self-described "pretty-soon major movie star" who lives 90 minutes north on Lake Superior, performed an impromptu concert outside the food tent Sunday night. He said he's composing a song about the Griffin.

"It's rattling around in my head," he said.

Friday, May 31, 2013

Coral triangle is the global center of marine biodiversity



The coral triangle is universally recognized as the “global center of marine biodiversity” and “the Amazon of the seas.”
It is fair to say that most of the Earth’s saltwater species that exist in today’s oceans owe their ancestry to ancient residents of the triangle. Now part of the South Pacific, the coral triangle was once a landlocked lake that formed during the Ice Age when massive blocks of ice sucked up the surrounding water, and land masses appeared from the ocean bottom. When the ice melted, the land was once again covered by water, and the species of the coral triangle propagated first east and west along the equator and then north and south.
Today, the triangle sits roughly in the tropical marine waters of Indonesia, Malaysia, Papua New Guinea, the Philippines, the Solomon Islands and Timor-Leste. All of it sits directly north of Australia. It covers 5.7 million square kilometers of ocean waters. The triangle is home to at least 500 species of reef-building corals and more than 3,000 species of fish, including the world’s largest fish – the whale shark – and the coelacanth. There are more species of coral, fish and crustaceans in the triangle than there are at any other location in the world.
But perhaps the most interesting thing about the triangle is the multitude of yet undiscovered, or, more accurately, scientifically unclassified wildlife that can still be discovered there today. All one has to do is dip below the surface of the water, and they can feast their eyes on an animal that would leave scientists dumfounded.
“You can see things that you’ve never seen before, and possibly things that are new to science that have never been described before,” said Rudy Whitworth who visited part of the coral triangle at Raja Ampat in Indonesia. He spoke about the coral triangle at this year’s Great Lakes Shipwreck Festival.
Whitworth, a member of The Ford Seahorses Scuba Diving Club, which sponsors the festival, said he filmed eight or nine undescribed species, including two that are likely brand new to science: a triple-fin blenny and a species of nudibranch.
“When I went to my experts, the doctorates that do the assigning, the scientists, they said ‘I have definitely never seen this one before.’ That’s really special.”
The uniqueness of the coral triangle is rooted in its role during the Ice Age. As ice cover grew from north and south polar ice caps, global temperatures dropped, and most warm-water species around the globe died. As the ice converged on the triangle area near the equator, the ice sucked up huge volumes of water and the ocean bottom suddenly became a land mass. The triangle area became land-locked and the warm-water species survived due to their comparatively warm location near the equator. Once the Ice Age ended, the ice melted and that ocean bottom was covered with water once again. But the result was the only warm-water species left were those located in the coral triangle.
“They have had longer to evolve. Therefore, there are more species there. So when the ice melted and the water came up, the species that were contained in this area actually went out and propagated all around the equator. And then they started working up and down. So the further you get away from this coral triangle, the fewer species you have. In terms of evolution, they have had less time to evolve.”

Tuesday, May 14, 2013

Michigan's copper mining history starts well before the birth of Christ

Michigan’s Upper Peninsula has been known as “copper country” for hundreds of years.
More specifically, the peninsula’s northwest corner, Copper Harbor, Ontonagon and Eagle Harbor, all part of the Keweenaw Peninsula, at one time were bustling areas of copper mining.
But did you know copper was first mined in our state thousands of years before the birth of Christ? Before the Egyptian pyramids? Before Stonehenge?
Scientists believe copper was first mined in the Upper Peninsula between 3,000-7,000 years ago, or about 5,000-1,200 B.C. During that time, it is estimated 1.5 billion pounds of copper was mined by an unknown civilization.
These people left behind no burial grounds, no dwellings, no pottery or cave drawings. What they did leave behind was thousands of copper producing pits and thousands of crude hammering stones to work the pits. They would alternately use fire and cold water to break copper bearing rock into smaller pieces and then extract the metal with hammer stones.
Because copper is a malleable metal, it was easily shaped and durable. It would be turned into tools, arrows and spearheads, as well as jewelry.
But most of the estimated 1.5 billion pounds of copper mined by these ancient people is no longer in the Upper Peninsula. Where did it go? How was it transported? The pure copper of the Lake Superior region has been found in prehistoric cultures throughout North and South America.
“This is the controversial area of the copper story,” said Luke Clyburn of the Noble Odyssey Foundation, which released its latest documentary, “America’s Ancient Industry” on copper mining in the U.P. “The amount of effort that it took to mine, to be able to travel to Isle Royle, to travel to Keweenaw, there had to be an economic payback.
“It was an industry,” Clyburn continued. “These people were looking at how to exchange it, maybe not for money, but for a commodity that they needed.”
Some experts estimate it would have required 10,000 men 1,000 years to mine the 1.5 billion pounds of copper and develop the extensive operations carried on throughout the region. Others say those numbers are high.
Regardless of the numbers, what often goes unnoticed or forgotten is that these ancient, unknown peoples had far more intelligence than they are given credit for.
“Were they just hunters and gatherers? I don’t think so. I think these people were pretty smart,” Clyburn said. “They knew how to make tools, and they shipped these materials wherever they could and exchange it for commodities that would make it worth their effort.
“They could travel and get back home again. That took a pretty high level of sophistication and navigation. All of that industry created some pretty sharp people.”
Schoolchildren are taught Christopher Columbus discovered America. But that is the Anglo-Saxon history. This region has a rich history developed long before Columbus sailed the ocean blue in 1492. It’s just that so much of it remains a mystery.
“There was clearly a lot of connection with other continents. Maybe it was exploration, maybe it was in search for food, maybe it was an expedition for copper,” Clyburn said. “People traveled back and forth long before what we see in history.”

To purchase Clyburn’s full “America’s Ancient Industry” documentary, go to www.nobleodyssey.org or call Clyburn at 248-666-9359. A $25 donation is to the foundation is required.

Wednesday, May 8, 2013

Ships only become famous after they sink


Most of the time, ships that ply the Great Lakes do so in anonymity.
It’s only when some tragedy befalls them that their name and their service record become history for the rest of the world to learn about.
The Edmund Fitzgerald was just another ship carrying iron ore through the Great Lakes until it famously sank in 1975 in Lake Superior. Singer/songwriter Gordon Lightfoot took it on a rocket ride to legendary status.
Even the Titanic, perhaps the most famous shipwreck of all time, would have been just another luxury steamer until it sunk in the mid-Atlantic in 1912. Sure, at the time it was lauded as one of the biggest, fastest, most luxurious ships ever made. But a lifetime of safe, comfortable ocean crossings would have surely helped it vanish into a mere footnote of history.
Valerie van Heest of Michigan Shipwreck Research Associates, an award-winning author and filmmaker from Holland, Mich., spoke about how ships become famous at a presentation titled “Lost and Found – Legendary Wrecks” at the 32nd Great Lakes Shipwrecks Festival.
“The fact is we learn more about the ship from the discovery of the wreck and the evolution of diving rather than the incident that put the ship on the bottom,” van Heest said.
Archeologically, van Heest said, we can study artifacts and personal objects left in the vessels after they have foundered.  We can learn more about the crew on board than simply a list of the names of those who perished. She described one vessel she dived in which she found personal objects, such as a crew member’s sock with a hole in it, indicating the man wasn’t well-to-do and couldn’t afford new socks. She’s found ships with an array of coins inside from various Scandinavian countries that provide a window into the geographic makeup of the crew.
“These are tremendous artifacts that speak to us by allowing us to study them,” van Heest said.
 Today, shipwrecks owe their survival in large part to relatively new state and federal regulations enacted to protect them from scavengers and treasure hunters looking to either remove things from the ships or lift the vessel itself out of the water altogether.
In 1987, the Abandoned Shipwreck Act was introduced in Congress and signed into federal law in 1988. That law mandated that each state write its own laws to protect shipwrecks and turned  over ownership of the wrecks from the federal government to individual state governments.
In Michigan, for example, the Aboriginal Records and Antiquities and Abandoned Property statute, which includes the Natural Resources and Environment Protection Act which protects shipwrecks, only became law in 1994. That law updated legislation that had been enacted in the state in the late 1970s but was not as comprehensive in scope.
Prior to that, anyone who had the wherewithal to lift a wreck, and the money to pay for it, simply had to obtain the salvage rights. Prior to the writing of the Shipwreck Act, “looting was standard practice by divers, including myself,” van Heest said. But doing so would gut the wreck of important artifacts, and bringing it to the surface would almost certainly spell an end to the vessel.
Van Heest cited as an example the case of the Alvin Clark, a ship that went down in Green Bay, Wis., in 1864. In 1969, a team headed by scuba diver Frank Hoffman lifted the Alvin Clark from the bottom of the bay in what was considered an extraordinary event that was praised by the government, the press and the public alike. The ship was designated a Michigan State Historic Site in 1972 and was listed on the National Register of Historic Places in 1974.
The ship was raised legally in extraordinary condition, completely intact and actually floated once water was removed from its holds. It quickly became a tourist attraction after Hoffman built a museum nearby and exhibited the ship as a tourist attraction at the "Mystery Ship Seaport" in Menominee, Mich.
But neither Hoffman nor its crew accounted for the environmental damage the ship would suffer out of the water – from weather, wind, extreme hot and cold temperatures – much different conditions from the cold, low-oxygen environment at the bottom of Green Bay.
The ship quickly began to deteriorate, decayed and started to fall apart. Hoffman had neither the expertise nor the money to restore the Alvin Clark. His search for grants to pay for repairs fell upon deaf ears.
Finally, in 1994, the same year shipwreck protection was updated in Michigan, the ship was considered beyond saving and deemed a hazard. The Alvin Clark, one of the oldest merchant ships to ply the Great Lakes, with its origins in 1847, was bulldozed and lost to history. And everyone involved learned a valuable lesson. According to van Heest, states across the country were influenced by the story of the Alvin Clark and used it as an example of what could go wrong while authoring their own legislation.
They don’t make them like that anymore
Thanks to improving side-scan sonar technology, van Heest believes all existing shipwrecks will be found in the next 15-20 years. In addition, she said it will take at least another 100 years before time and zebra mussels break down the oldest shipwrecks and turn them into a pile of planks. But fortunately, van Heest’s research has shown the older the shipwreck is, the better it’s made.
Remember how your parents would constantly complain things aren’t built the way they used to be? Well, according to van Heest, that also applies to shipwreck building nearly 200 years ago.
Not only are ships that sit in deeper water better preserved due to colder temperatures and less environmental activity, but older ships, in van Heest’s experience, were simply made better.
“In the heyday of the schooners in the 1870s-‘80s, they were cranking these things out, and I don’t think they were all that well built compared to the ones built in the early 1800s,” she said. “Back then, they weren’t as plentiful, and they were building them better.”
To learn more about legendary Lake Michigan shipwrecks, check out van Heest's book, titled "Lost & Found Legendary Lake Michigan Shipwrecks" by clicking here.

Monday, April 29, 2013

Rebreather opens up a whole new level of scuba diving




Like many divers, Mike Lynch anticipated his venture into the great blue beyond following his open water certification would be peaceful, serene and quiet.
Well, two outta three ain’t bad.
While scuba diving is peaceful and serene, it’s not always quiet, thanks to the never-ending pulse of expelled breaths and the resulting bubbles escaping past the diver’s ear. Breathing air in from a pressurized tank and expelling used air into the water column has always been a part of diving in general and scuba diving in particular.
But for serious divers, and those with both the skills and the disposable income, rebreathers offer a panacea of underwater enjoyment.
In the past year, Lynch, a diving friend of mine who works with Bruno’s Dive Shop in Clinton Township and Titan Dive Group, became a certified rebreather diver, and the stories he has to tell are amazing. Four-hour cave dives with an average depth of 120 feet and such quiet tranquility that he can hear the water moving around in the cave system and rocks cracking on each other as they roll around in moving water. Fish swimming right up to his mask to see their reflection because they aren’t scared away by expelled bubbles.
“It brings you into a whole new world of diving,” Lynch said.
Lynch, repping Titan at the Great Lakes Shipwreck Festival in March, gave me an up-close and personal explanation of how the rebreather works.
In the most basic terms, the rebreather uses two tanks, one containing pure oxygen, and the other containing regular air used as “filler.” Each tank is smaller than a traditional scuba tank. With each breath, the used air is recirculated using a scrubber to remove the carbon dioxide, and additional oxygen is added to the “filler” air. The system is constantly evaluating the user’s gas needs based not only upon their own metabolic rate, but also things like the dive depth. According to Lynch, it creates a perfect nitrox mix for the entire dive.
It is a much, much more efficient way to use gas, since it is all recycled and reused. A typical “open circuit” scuba unit, with expelled bubbles, wastes a significant amount of oxygen. In a typical breath, only about 4-5 percent of the oxygen is used, and the rest is expelled into the water. With a rebreather, that unused oxygen is pushed back in the system and mixed with the filler air and oxygen. Lynch said that during his four-hour cave dive at an average of 120 feet, he only used eight cubic feet of oxygen.
While the idea and the concept of rebreathers have been around for more than 200 years, mass-produced recreational rebreathers have only been around for a little more than 20 years. The last 10-15 years have seen significant technological advancement.
Nevertheless, cost remains an issue. Lynch said a diver looking to get into rebreather technology can expect to spend about $10,000 for the equipment, the training and the gas to get started.
In the video above is my interview with Mike Lynch and our discussion about rebreathers.