Bighorn Lake, Montana and Wyoming - Laser Cut Wood Map
- 5,574 Surface Acres
- Elevation: 3,303 Feet
The 525-foot-high Yellowtail Dam impounds the Bighorn River at Fort Smith, Montana. Completed in 1965 Yellowtail Dam changed a good warm water fishery into a high quality tail-water trout fishery below the dam. Its construction created Bighorn Lake which lies between the Bighorn and Pryor Mountains by the Bighorn River. Hundreds of feet down, within the Bighorn Canyon, water is backed up some 41 miles in Montana and 30 miles into Wyoming.