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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.

HomeEventsThomas Wilson Invasive Species Monitoring Project

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Thomas Wilson Invasive Species Monitoring Project

Saturday, September 16, 2017, 7:00 AM until Sunday, September 17, 2017, 5:00 PM
Spirit Lake Marina Duluth
Spirit Lake Marina
121 Spring St
Duluth , MN   55808

Tim Pranke
2017 Projects
Registration is closed - Event is full
Payment In Advance Or At Event
Cancellation Policy:
The GLSPS Board of Directors have expenses associated with this project after you register. Unfortunately the GLSPS cannot refund any fees you have paid so far. We apologize for any inconvenience this may cause.
Available Slots:
Thomas Wilson Invasive Species Monitoring and Cleanup Project
September 16 - 17,  2017

(Cancelled Because of Weather and Poor Visibility)

Please join us for the 8th annual event.  We will be counting Zebra and Quagga Mussels on the whaleback steamer Thomas Wilson to track the population trends.  This year we may be collecting mussels for the U of M and DNR for their research labs to study.
In interested, please register for the project by clicking on the "REGISTER NOW" button above right.
If you have registered already and have a conflict and have to cancel, please inform the project leader by email or phone so that we can free up the spot for any reserved persons waiting for an opening.  The Project Leader's contact information is above.


Saturday Project Itinerary:

1. 6:30 AM - Wake up call for those staying on boat.

Please Note:  All participants need to meet at the dock at Spirit Lake Marina and be loaded by 7:00 AM Saturday


2. Departure time no later than 7:30 AM.  All Liability Releases, Waiver and Medical forms should have been printed (obtained) at home, read thoroughly, signed and turned into the Project Leader or Captain at this time. If forms had to be handed to participants at the boat, protocol says it's too late and you cannot participate.


3. Perform boat safety briefing


4. Cruise down river while having breakfast and out in the lake 1 mile SSE from the Duluth Harbor Entrance.  Hook the Wilson shipwreck.


5. 8:45 - Dive Safety briefing (15 min). Establish dive teams and order.  Then brief the teams on their assignments. Set up and drop surface supplied O2 system on accent line (anchor line).


6. 9:00 to 10:00 AM - Commence diving operations.  Send first dive team.


7. 10:00 to 11:00 AM - Send second dive team.


8. 11:00 AM Start refilling scuba air tanks for first dive team while recording results of the dive.  ( Mussel count).


9. 11:30 AM - Finish filling scuba tanks with air for first team and start second team air filling.


10. 12:00 Noon - Lunch will also be served for first and second dive teams.


11. 12:30 - Start recording results of the second dive team.


12. Long 1 hour surface interval and discuss results of the two dives after recording them.  Start briefing on the next tasks that need to be accomplished.


13. 1:30 to 2:30 PM - Send first team on second dive after a short briefing on their new assigned task.


14. 2:30 to 3:30 PM - Send second dive team on second dive of the day after a short briefing on their new assigned task.


15. Discuss a possible 3rd  dive, Wilson/Mayflower.


16. 5:00 PM returning to dock at the Spirit Lake Marina for dinner.  (Local dining of the groups choice).


17. 10:00 PM All participants need to return to the boat for lights out.  (Required sleep for divers and crew).


Sunday Project Itinerary:


1. 6:30 AM - Wake up call.


2. 7:00  AM - Departure from dock / Spirit Lake Marina and start breakfast.


3. 8:00 - 8:30 AM - Dive safety briefing for the day.


4. 9:00 AM - Diving starts after short briefing on what tasks need to be completed for each team.


5. 10:00 AM - First dive team returns then Send second dive team.


6. 10:30 AM - Record first dive teams results.


7. 11:00 AM - Second dive team returns and records results of their dive.


8. 12:00 Noon - Lunch is served.  Start filling tanks with air if second dive is required.


9. 1;00 PM - If second dive has been discussed and approved - Start second dive after short briefing on left over tasks that need to be completed.


10: 1:30 - If there is not a second dive to perform.  wrap up diving operations and head back to the Marina to unpack and head for home to end the 2013 Wilson Project.


11. 2:30 - 3:30 PM - (If there is a second dive).  Send second dive team.


12. 3:30 PM - Diving operations end wrap up and head back to Marina for unloading and debriefing on the project.  (This takes place typically on the way back to the Marina).


13. 4:30 return to dock at Spirit Lake Marina.


Thank you all that participated in this project.  We hope you had fun learning about zebra and quagga mussel monitoring.  Hopefully you will be able to participate in a future GLSPS Project.


Safe diving,

Tim Pranke

Wilson Project Leader