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About - Keyhole State Park

Description:

Keyhole State Park is located on the western edge of the famed Black Hills, between Sundance and Moorcroft, and is easily accessed off I-90 at exit 165. The Keyhole Dam, an earthfill structure, was completed by the Bureau of Reclamation in 1952. Within site of Devils Tower, Keyhole State Park is a mecca for both resident and migrating birds of all species, and offers excellent fishing for walleye, catfish, smallmouth bass, and northern pike.


History:

The Keyhole area centers on the reservoir, approximately 14,720 acres of water recreation opportunity. The elevation at Keyhole is 4,100 feet. Seasons are comparatively mild, with great weather from spring through fall, and some of the finest ice fishing in the state during the winter months. Keyhole State Park was named for the “Keyhole” livestock brand that was used by two brothers by the name of McKean. They established a ranch in the area.

 
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Site Status

 

We are open. Please view our hours to find a good time to visit!

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Hours

 
  • Our site is up and running year-round.
  • Our fee booths are open May thru October. When the booths are closed please use the fee canisters located at each entrance to pay fees.
  • Our office hours of operation are 7 a.m. to 3:30 p.m., Monday thru Friday.

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