We think the Great Lakes are big. But 12,000 years ago, there was a "Ghost Lake" in the center of North America that was bigger than all of them combined. Glacial Lake Agassiz. It covered parts of Canada, Minnesota, and North Dakota. The Scary Part: It wasn't held back by dirt. It was held back by a wall of ice. When the ice dam finally broke, it didn't just flood the land—it changed the world. The freshwater rushed into the ocean so fast that it stopped the Gulf Stream and triggered a mini Ice
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Southeast Minnesota is a popular trout fishing destination, and each spring and fall DNR staff survey key area streams to collect data on trout populations. Annual surveys help us understand how trout numbers are affected by short-term changes (such as a flood event or food availability) as well as long-term trends, like climate change. Looking to catch some trout in 2024? Due to the unique karst geology of the Driftless Area with its abundance of springs, Southeast Minnesota’s trout streams sta
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