Sheridan Lake, reservoir in Pennington County, South Dakota
Sheridan Lake is a large reservoir in the Black Hills of western South Dakota, covering about 400 acres and sitting at an elevation above 4,600 feet. The lake was formed in 1939 by a dam built across Spring Creek, and it features two public beaches, boat launches, campgrounds, and fishing docks.
The lake was built in 1939 as part of a broader American program to create recreational spaces, with construction done by the Civilian Conservation Corps. Its name comes from Sheridan, which was the first county seat of Pennington County located in this region of the Black Hills.
The lake takes its name from Sheridan, the first county seat of Pennington County, connecting early settlement history with modern outdoor life. Today it serves as a place where local people and visitors spend time in nature and experience the rhythm of the seasons.
The lake is easy to reach via US Route 385 and offers parking, toilets, and picnic areas at both beaches plus two boat ramps on each side. Campsites operate on a first-come, first-served basis except for some reserved spots, so arrive early especially during peak season.
The lake maintains a steady water level throughout the year because it is not used for flood control or irrigation, making it a reliable spot for fishing and boating. This characteristic sets it apart from many other lakes in the region that experience seasonal water fluctuations.
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