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Great Lakes Shipwreck Preservation Society
Dedicated to Saving our Shipwrecks "From Prevention to Preservation"
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GLSPS Annual Fundraiser!!
2019 UMSAT Show

New Date for 2019 UMSAT Show!!

April 12 - 13, 2019

Friday 7:00 to 10:00 PM
Saturday, 9:00 AM to 6:00 PM
(Including After Party with food and Beverages)

New Location for 2019!

Jimmy's Event Center Vadnais Heights MN
For more information on the 2018 UMSAT show, and the upcoming 2019 UMSAT Show, please visit

If you are interested in joining the UMSAT Show Planning Committee, please email us at or contact Ken Merryman at or Phil Kerber at

Here are the Links to Important Exhibitors Documents

UMSAT Show 2019 Exhibitors Contract W/ Registration Form 

UMSAT Show 2019 Exhibitor Sponsors Registration Form

We are always looking for speakers that would like to present a great topic about their scuba diving or adventure travel experiences.

Please let us know if you, or anyone you know, would like to be a star and speak at a future UMSAT Show!

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Check out the most beautiful magazine ever produced in Northern Minnesota!

GLSPS Project Sponsors

Air Down There Scuba offers free air fills and special pricing on rental equipment while participating in GLSPS projects. Thank you, Scott and Tracy!

Aquaventure Dive and Photo Center offers free air fills and special pricing on rental equipment while participating in GLSPS projects. They have also loaned us a GoPro HD video camera for a few projects. Thank you, Steve and Jolene!

Videos produced by Steve at Aquaventure Dive and Photo Center filmed in Lake Michigan on a Milwaukee charter trip. Click on their above logo for information to join them on a charter to visit these shipwrecks.
Prins Willem
The Dredge 906

Jay Hanson from North Shore Scenic Cruises has helped the GLSPS on many projects. Jay has many years of experience as a Captain, dive shop owner, dive instructor and commercial diver.

Jay has taken a different path for the past few years and his scuba charters are no longer available. However, in 2012, Jay purchased the Wenonah which was previously used to transport people from Grand Portage, MN to Isle Royale, MI. He now offers day cruises on the North Shore of Lake Superior and is docked at the Silver Bay, MN Marina.

If you are interested in booking a 2 hour - day charter cruise on the North Shore of Lake Superior, please click on the logo above for information on joining him and his staff on a north shore day cruise.

HomeIntro to Shipwreck Mapping 2002

Introduction to Shipwreck Mapping

Shipwreck Mapping Class held August 24-25 with David Cooper

DaveCooper_DIP2002Dave Cooper was the State Underwater Archaeologist for the State of Wisconsin and currently works with the National Park Service as Chief of Resource Management at Grand Portgage National Monument.

The class was held on August 24-25 at Two Harbors, Minnesota. Participants dived on and mapped the Samuel P. Ely.

They learned basic sketching, triangulation, offset measurements, and basic ship architecture.

Archaeology & Documentation Class
S.P. ELY Two Harbors, MN
August 24 & 25, 2002

Dave Cooper instructs GLSPS divers in the fine points of documenting areas of ships. Several reference books were on hand to show examples of ship construction.

Pictured standing (left to right) are Ken Knutson, Jay Cole (Videographer), Byron Meyer, Randy Beebe and Dave. Bob Nelson and Bob Olson are seated at the table.

Dave also showed triangulation method on the ground using measuring tapes.

Steve Daniel shared techniques for drawing features of a ship underwater. Complex forms of ship construction are broken down into combinations of simple shapes and lines. The underwater drawings made with pencil on matte polyester sheets are later transferred to paper on the surface and refined.

Instruction took place in the park near the Two Harbors Lighthouse. Some artifacts from the ELY, including the bell, could be viewed in the light house museum shipwreck display.

Bob Nelson pulls his boat up to the breakwater with happy Bob Olson in the bow. Byron, Dave and Ken anxiously wait at the stern to apply their new skills underwater on theELY. Jay Cole (inset, left) motored out to record the class activity with his video camera.

The underwater portion of the class involved laying a baseline, measuring portions of the ship from the baseline and drawing interesting features of the ship. Several large artifacts, such as the centerboard winch, were also drawn. Steve and Dave (inset, right) suit up to dive.