Head west from Casper Wyoming on Hwy 220 about 30 or so miles and turn left on Pathfinder Rd. Its called Pathfinder Reservoir. There’s a hiking trail on the south side of the dam. Park at the dam and walk across. Follow the trail down to the bridge, about 2 miles. Its the hike up that kills ya. Also there’s a nice beach down there. Pack a lunch and make it a day. Great for non jumpers and small ones.