Fall 2025 Newsletter
Gratiot Lake Data Report Available
Created through the Cooperative Lakes Monitoring Program, the 2022 Data Report for Gratiot Lake is now available. Volunteers at Gratiot have participated for 22 years in collecting data on water transparency and phosphorus levels. These parameters help to track what changes or trends may be occurring in the health of the Gratiot Lake ecosystem and also can point to human caused pollution that may be impacting lake quality (like fertilizer use on lakeside lawns or practices that allow lots of sediment to runoff into the water (extensive heavy logging or roadbuilding or clearing land for construction for instance).
GLC Annual Meeting
GLC Annual Meeting held on July 26, 2022 watch on GLC YouTube channel
"Predator-Prey Dynamics" webinar presented by Dr. John Yunger
DR. John Yunger presents “Mammalian Preditor-Prey Dynamics” Webinar May 2021
GLC Webinar "Remapping the Keweenaw Fault and Gratiot Lake's Bedrock Geology" Now Available
Our free webinar, “Remapping the Keweenaw Fault and Gratiot Lake’s Bedrock Geology” by Daniel Lizzadro-McPherson, is now available to watch on YouTube or right here on our website. Please enjoy this free presentation about the geology of Gratiot Lake and the Keweenaw Fault.
GLC Webinar "Native Flora for Native Fauna" Available Now
Our free webinar, “Native Flora for Native Fauna” by program director Gina Marie Jarvi, is now available to watch on YouTube or right here on our website. This webinar is an introduction to gardening with native plants - why is it important and how does one get started? Enjoy!
KISMA Crew Removes Invasive Thistle from GLC
Our tenacious partners in Keweenaw Invasive Species Management Area (KISMA) recently visited Gratiot Lake Conservancy to physically remove invasive thistle. Unfortunately, they reported that the problem was just as bad or worse than last year. Still, the crew removed nearly 5 bags full of the thistle, hoping to hinder next year’s flowers and to slow the spread.
Photos courtesy of Dr. Sigred Resh, KISMA Coordinator and Research Assistant Professor at Michigan Technological University; and Bonnie Hay, GLC President.
Thank you, KISMA!
Noisy Neighbors Nest Again - By Bonnie Hay
Eaglet enjoying lunch, photo courtesy of Jim Hay.
Bald Eagles nested in an old nest tree in the northwest corner of Gratiot Lake for the first time in 20 years.
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