Wifi available
Shoshoni, WY
WiFi
Boating
Fishing
Swimming
Wildlife Watching
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Amenities, activities and location
Amenities
WiFiActivities
BoatingFishingSwimmingWildlife Watching
Landscape
LakeRiverCreek
Getting there
Shoshoni, WY, 82649, US
Good to know
- Campfires
- Allowed
About this campground
Cottonwood Bay Group Site is part of Boysen State Park, Wyoming's largest state park, situated on the western shore of the expansive Boysen Reservoir. The group site is one of several smaller camping areas along the west side of the reservoir, including North Muddy, Sand Mesa, Wilson Bay, and Trout Bay. Cottonwood Bay offers direct lake access and features a boat ramp, making it convenient for groups interested in water-based activities. The reservoir itself spans 19,560 acres with 76 miles of shoreline and is generally ice-free from March through December. Fishing is a primary draw, and the clear skies rank as Class 2 on the Bortle Dark-Sky Scale, making it excellent for stargazing.
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The park is located at the southern end of the Owl Creek Mountains near the mouth of Wind River Canyon, where the original Asmus Boysen Dam was built in 1908. The current dam was completed in 1951, and the state park was established in 1956. The area sits on the edge of the Wind River Indian Reservation in Fremont County, with the Wind River flowing north through the canyon. During peak season, water systems operate at most campgrounds, though facilities are more limited in winter months. The park offers diverse recreational opportunities including boating, fishing, swimming, wildlife viewing, and exploration of geological features.
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Wifi available
Last checked Mar 2026
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