| Thompson River | |
|---|---|
  Location of the mouth of the Thompson River in Montana | |
| Location | |
| Country | United States |
| State | Montana |
| County | Sanders County |
| Physical characteristics | |
| Source | |
| • location | Rocky Mountains, Montana |
| • coordinates | 48°0′52″N 115°11′27″W / 48.01444°N 115.19083°W[1] |
| • elevation | 3,337 ft (1,017 m)[2] |
| Mouth | Clark Fork |
• location | Thompson Falls, Montana |
• coordinates | 47°34′37″N 115°14′23″W / 47.57694°N 115.23972°W[1] |
• elevation | 2,405 ft (733 m)[3] |
| Discharge | |
| • location | Thompson Falls, Montana |
| • average | 439 cuft/s [4] |
| • minimum | 80 cuft/s |
| • maximum | 1,785 cuft/s |
| Basin features | |
| Tributaries | |
| • left | Little Thompson River |
The Thompson River is a tributary of the Clark Fork in the U.S. state of Montana. It is part of the Columbia River basin, as Clark Fork is a tributary of the Pend Oreille River, which is a tributary of the Columbia River.
The Thompson River is named in honor of David Thompson.
