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Keyhole State Park
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Activities & Amenities
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About Our Site - Keyhole State Park
Keyhole State Park offers swimming, hiking, boating, water skiing, bird-watching and fishing. Some of the state’s largest fish have been caught at Keyhole. You can also reserve one of our 3 group shelters to host weddings, family get togethers and company picnics. Keyhole State Park is located on the western edge of the Black Hills, between Sundance and Moorcroft, and is easily accessed off I-90 at exit 165. Travel north 6 miles and the entrance to Park Headquarters will be on your left. Keyhole State Park has 10 campgrounds, all of which are reservation only.
Proud Sponsor of Kids eXtreme events:
Keyhole Reservoir Investigated for Cyanobacterial Blooms
 August 10, 2020 A concerned visitor alerted Wyoming State Parks that their pets became ill after a recent visit to Keyhole State Park.
The investigation is currently only for the section of the reservoir in the upper end of Cottonwood Bay, potentially affecting Pronghorn, Tatanka, Arch Rock, Cottonwood, and Homestead campgrounds. Recent and repeated satellite imagery does not show the presence of HCB, and park staff have visually surveyed the potentially affected areas on land and from the reservoir, and have not seen any evidence of a bloom. DEQ is sending staff to investigate, and the Wyoming Department of Health has been alerted. Lakes or reservoirs under investigation are not closed. Marinas, lakeside parks and camping facilities are open for business. Any closed areas will be specifically noted. Visitors are advised to err on the side of caution and use their best judgement when recreating in this area. Share this article: A Division of Wyoming State Parks & Cultural Resources 2301 Central Avenue, 4th Floor, Cheyenne, WY 82002 307-777-6323, www.wyoparks.org
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View more updates for Keyhole State Park!
- Keyhole Reservoir Investigated for Cyanobacterial Blooms 2020-08-11 06:58:31
- Portion of Keyhole Reservoir Under HCBs Advisory 2019-09-17 11:19:17
- Keyhole State Park Partners With Audubon Society for Bird Banding Events 2019-05-31 12:16:45
- Keyhole State Park Experiencing Minor Flooding 2019-03-28 12:02:47
- KEYHOLE RESERVOIR TO HOST JACKALOPE JUMP MARCH 16TH 2019-02-26 16:34:51
- Keyhole State Park Holds Family Fishing Day 2018-01-30 14:57:42
- Keyhole State Park open anxiously awaited Tree House 2017-06-08 11:55:04
- Keyhole State Park hosts bird banding event Saturday 2017-06-08 07:58:45
- Keyhole State Park road construction project begins mid-June 2017-06-01 11:45:09
- Weekly Ranger Recreational Use Report 2017-03-28 14:28:03
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COVID-19 Coronavirus Camping in Wyoming State Parks now open to ALL visitors. Social distancing guidelines in place.
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