Brannon Boat RampBrannon Road, Boysen State Park, Shoshoni WY 82649 · Main marina-area ramp with dock · usable when ice-free (≈Mar–Dec) · drawdown-prone
Boysen Reservoir is a 19,560-acre reservoir in Wyoming, completed in 1952, managed by USBR Great Plains Region. Live pool elevation comes from USBR's RISE catalog. Public launches include Brannon Boat Ramp, Tough Creek Boat Ramp, and Fremont Bay Boat Ramp.