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About Our Site - Boysen State Park

 

The first white men through the Wind River Canyon were the Ashley Fur Party in 1825. The original dam was built by Asmus Boysen in 1908, for whom the park and reservoir are named. Part of the original dam can still be seen adjacent to the tunnels on the Lower Wind River Campground. Mr. Boysen also built a 710kW power plant at the site. Operations ceased when in 1923 a major flood filled the plant with silt.

The CB&O Railroad went through the canyon in 1911 and the state highway went through in 1925. The existing dam was completed in 1951. Boysen became a state park in 1956.

Original-Boysen-Dam-SiteLower-Wind-River-CampgroundOriginal Asmus Boysen Dam Site Located just north of the Lower Wind River Campground. This site also represents the park's northern boundary.

 

Boysen Upper Wind River Campground Closed for Construction

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Contact: John Bass, 307-876-2796

FOR IMMEDIATE RELEASE

            The Upper Wind River Campground and entrance off of US 20 at Boysen State Park is scheduled to be closed through January 19, due to construction.

            The project, repairing an erosion hole between the campground access road and the Wind River, will involve the armoring of the river bank and repairs to the roadway.

            During the closure, the public is invited to use the Lower Wind River Campground.

            Wilson Bros. Construction from Cowley has been awarded the contract for the project.

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Wyoming State Parks, Historic Sites & Trails
A Division of Wyoming State Parks & Cultural Resources
2301 Central Avenue, 4th Floor, Cheyenne, WY 82002
307-777-6323www.wyoparks.org

 

 

 

 

More Information - Boysen State Park

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Facts and Figures
  • Current Dam
  • Structural height: 216 feet
  • Crest Length: 1,100 feet
  • Type: rolled earth, rock-fill
  • Volume of material: 1,700,000 cubic yards
  • Spillway capacity: 20,000 cubic feet/seconds
  • Power plant: 15,000 kw

Reservoir and park

  • Water: 19,560 acres
  • Shoreline: 76 miles
  • Length: 20 miles
  • Widest point: 5.5 miles
  • Land: 15,145

Believe it or not…

Yes! Contrary to what your eyes tell you, the Wind River flows NORTH!

 
 

 

 
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Site Status

 

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

***North Marina at Boysen Reservoir, commonly known as the Brannon Boat Ramp, is under a water quality advisory.** See "News & Updates" this page.

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Hours

 

Grounds open all year - 24 hours.

Season

Park grounds are open year-round, weather permitting.

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