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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.

HomeThomas Wilson 2017 Invasive Species Monitoring Project

2017 Thomas Wilson Invasive Species Monitoring Project

September 16 - 17


September 30 - October 1

(Cancelled because of Weather and Visibility)

Tools Used to Count Mussels
Photo taken by Jack Decker

To learn more about the project and how to participate, please click on the links below.

Please join us for this EXCITING Project!!

If you haven't dived the Whale-back Thomas Wilson, here is your chance!


Closing Report

The 2017 Thomas Wilson Invasive Species Monitoring Project was cancelled because of the weather and poor visibility.  We made multi-pal attempts to dive the shipwreck but we discovered it wasn't safe enough to make the dives in eight inches to one foot of visibility.  We called the first weekend after attempting one dive and seeing the poor visibility.  The second weekend was called because the weather had high winds and rain.  We were presuming the visibility had not gotten any better at this point.  The project will continue in 2018.

Despite the poor visibility and weather conditions causing it, we were still able to enjoy a nice cruise around the harbor.  We visited with interested tourists as we docked the boat along the break wall.  We talked about the GLSPS goals and ideals we have in preserving maritime history and protecting our shipwrecks and our cultural resources.  We handed out GLSPS brochures and encouraged them to join us as members to see what we've been doing and hopefully continue to do in the future. 

We took some photos while cruising the harbor.  Please click Here to see them.