However, it is said to be fed by a spring in the lakebed. The lake is crescent-shaped. When the town of Silver Lake was founded in 1871, the lake already existed. Silver Lake is one of at least six oxbow lakes formed from the Kansas River. Since the lakebed is mostly shallow, the surface area of Silver Lake can vary considerably. In a drought in the 1980s the lakebed all but dried up.

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