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Image of the Map Lake St. Clair Coastal Water Trail Map
This map, showcasing the Great Lakes Basin, demonstrates just how large the lakes and their drainages are.
Continue the tradition... paddle Lake St. Clair and explore with this map.
Dabblers and Divers An Introduction to Michigan Watersheds for Teachers, Students and Residents
This poster helps you find clues on identifying the duck as a dabbler or diver. A guide to understanding Michigan's watersheds, why they are important and how they function.
Michigan Watersheds Map Crayfishes of Michigan
Crayfishes of Michigan
List Price: $10.00
Price: $10.00
Perfect for the classroom! The updated Michigan Watersheds Map is a fantastic way to illustrate a personal connection to the waters of the Great Lakes. Explore the wild world of freshwater crayfish! This 26" x 37" poster showcases 10 types of native and invasive crayfish commonly found in Michigan’s rivers, lakes, and streams. Full-color images and detailed descriptions help make identification a breeze.
Harmful Algal Blooms in Lake Erie Great Lakes watershed poster
This poster unpacks the history and science behind Lake Erie's now-annual algal bloom. Learn why Lake Erie experiences so many harmful algal blooms and how scientists are using innovative tools to understand and hopefully prevent these blooms in the future. Complete with a timeline of milestones in the fight against blooms in Lake Erie, this 39" x 27" poster is a useful guide for offices or high school and college classrooms.
Due to COVID-19, Great Lakes Watershed map orders are not being fulfilled at this time. If you do place an order, maps will be shipped when it’s safe to do so.

No matter where you are located, you are
in a watershed. A watershed can be as small as a few acres draining into a farm pond or as large as several thousand square miles for a major lake, such as one of our Great Lakes.

On this new map, created by the Nature Conservancy and produced by the Fred A. & Barbara M. Erb Family Foundation, the watersheds of our Great Lakes are depicted in vibrant color. Displaying both the individual and collective watersheds that make up the Great Lakes basins, this map helps to remind us that all of the water – clean and polluted – that flows into one of these watersheds will eventually end up in one of our Great Lakes. The map's simplified style and eye-catching color makes it a great addition to any classroom or home. 24" x 40"