Gray Reef Reservoir - First Come, First Served


Fly Fisherman dream of a place, a place where the river runs through it, a place where large trophy trout can be found every day of the year. Their dreams were realized in the Gray Reef Reservoir and campground. Map (PDF)

Contact Information

Gray Reef Reservoir is located on the North Platte River 30 miles southwest of Casper, in Natrona County. Access is from U.S. 220 via County Rd. 412.

Recreation is managed for the Bureau of Reclamation by:
Natrona County Roads, Bridges, and Parks Department
Mills, WY 82644


Under its prescribed function as a reregulating reservoir, the water surface elevation of Gray Reef fluctuates widely from nearly full to nearly empty on a daily basis. A barrier-free fishing pier and restroom are located at Gray Reef Dam. A campground is located below the dam.

Canoes and other small watercraft may be launched from the campground. Available species include brown trout, cutthroat trout, rainbow trout, and walleye. Rainbow and cutthroat are stocked in the river below Gray Reef Dam. A boat ramp and parking lot are located downstream of the dam within the campground.


  • Boat ramp
  • Parking lot
  • Restrooms
  • ADA accessible
  • Sheltered & non-sheltered camping ($10.00 / night).