Boysen Reservoir, lake in Fremont County, Wyoming, United States of America
Boysen Reservoir is a large body of water created by a concrete dam across the Wind River in a deep canyon. The water spreads out behind the structure with rocky cliffs on both sides, and the surrounding landscape is dry and open with scattered trees near the shore.
Planning for the reservoir began in the 1930s and 1940s as a response to spring flooding and irrigation needs in the region. Construction started in 1947 and finished in 1952, after which water filled the basin and a power plant began operating to serve the local area.
The name comes from Asmus Boysen, who had previously built a small dam on the same river for power generation. Today, visitors come to fish, boat, and enjoy the quiet shores with rocky cliffs and open views of the water.
The area has a State Park with camping facilities, boat rental, and fishing supplies available at the marina. The shoreline offers multiple accessible spots to stop and rest, though some side roads are rough and require slow driving to reach quieter areas.
The Wind River carved through multiple layers of rock over millions of years, creating a canyon with exposed colored formations that reveal ancient geology. Visitors can drive along the scenic byway and stop at overlooks to see how the rock layers tell the story of Earth's changes.
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