Cottonwood Slough

USA / South Dakota / Watertown /
 lake, wetland, National Natural Landmark
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Cottonwood Slough is a shallow lake. This lake, along with some 6,424 surrounding acres of land make up a National Natural Landmark known as Cottonwood Slough/Dry Run. The area is a glaciated finger outlet of the world's largest Pleistocene glacial lake. The overall site contains a completely undisturbed wetland complex including potholes, streams, shallow open water, lakes, and marsh.
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Coordinates:   44°57'27"N   97°11'42"W
This article was last modified 3 years ago