| Region | Facilities in Great Plains | Great Plains Home Page |
| State | Montana |
| County | Teton, Lewis and Clark |
| Project | Sun River |
| Dam Type | Concrete arch |
| Reservoir | Gibson |
| Watercourse | North Fork of Sun River |
| Location | On the North Fork of Sun River about 24 miles northwest of Augusta, Montana. |
| Original Construction | 1926-1929 |
| Modified Construction | Spillway modified in 1938; outlet works gates replaced in 1971; overtopping modification in 1982 |
| National ID Number | MT00571 |
