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Thanks to Gary Meuleman for a great photo of Marquette, MI!

“It’s invaluable to the angling community….it saves everybody time and effort. It’s incredible what you can know ahead of time before you head out on the water. I’d like to see it expanded."Scott Heintzelman | Manistee, MI | Fisheries Manager at Michigan Department of Natural Resources

Value of GLOS

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The Great Lakes Observing System (GLOS) is a charitable, tax-exempt organization. As a nonprofit, GLOS relies on funding from grants and donations to execute our mission, led by our core values.

Your donation supports getting valuable insights on lake conditions and weather of the lakes in the hands of everyday people and Great Lakes researchers.

1/5 of the world's freshwater

The Great Lakes contain a fifth of the world’s surface freshwater.

People in the Great Lakes Region

We’re working toward a future for Great Lakes information that best protects the shared waters of the tens of millions that call the Great Lakes home.

Widespread great lakes observations

GLOS’ and partners’ observation assets spread across all five Great Lakes.

Monitoring and protecting the Great Lakes
Help us tackle the greatest threats facing the region and the millions of people that rely on them.

Suggestion Seagull

Other ways to support GLOS

Please contact with any ideas you have to help us promote safety, security, and sustainability in the Great Lakes.

  • Sponsor Seagull
  • Adopt an observing platform 
  • Health and Safety Gear
  • Providing Data & Services to GLOS
  • Host a Seagull Nest for your community/organization
  • Other gifts (ie. vessel time, equipment, etc.)
Great Lakes Donation

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