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Boysen State Park

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About Our Site - Boysen State Park

Original Photo of Boysen Dam

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

Wyoming State Parks Announces Pause on Potential Visitor Center Project at Sinks Canyon State Park

LANDER, Wyo. – March 26, 2026 - The Wyoming Department of State Parks and Cultural Resources (SPCR) is announcing a pause on a possible visitor center project at Sinks Canyon State Park following public engagement efforts conducted in late 2025.

On Dec. 1, 2025, Wyoming State Parks, in partnership with Sinks Canyon WILD, hosted a public forum and gathered feedback from park visitors, community members, and stakeholders regarding the possibility of a new or enhanced park visitor center. Input received through that process helped inform the agency’s decision to pause the project at this time.

“We appreciate the thoughtful feedback shared during the public engagement process,” said Carly-Ann Carruthers, planning manager for the Wyoming Department of State Parks and Cultural Resources. “Community perspectives are an important part of our planning process and help ensure that future projects reflect the needs and values of the people who care about Sinks Canyon.”

Comments received during the engagement process highlighted several areas for further consideration, including the need for additional community and tribal engagement, further justification for a new or expanded visitor center, and additional evaluation of potential locations for such a facility. Some participants also suggested exploring alternative settings outside of the state park.

This pause presents an opportunity for interested citizens and stakeholders to work with park staff to develop a vision for such a facility. The agency hopes that a community-driven consensus will emerge in the months and years ahead regarding future visitor services and opportunities at Sinks Canyon State Park, which continues to see high visitation each year

For more information on Sinks Canyon State Park, visit http://wyoparks.wyo.gov/sinkscanyon.

Figure 1: Exterior of the Sinks Canyon State Park Visitor Center.