Tilton River
| Tilton River | |
|---|---|
Location of the mouth of Tilton River in Washington | |
| Location | |
| Country | United States |
| State | Washington |
| County | Lewis |
| Physical characteristics | |
| Source | Gifford Pinchot National Forest |
| • location | north of Morton |
| • coordinates | 46°39′23″N 122°13′44″W / 46.65639°N 122.22889°W |
| • elevation | 3,035 ft (925 m) |
| Mouth | Cowlitz River |
• location | Lake Mayfield |
• coordinates | 46°33′09″N 122°32′04″W / 46.55250°N 122.53444°W |
• elevation | 427 ft (130 m) |
| Length | 29 mi (47 km) |
| Basin size | 154 sq mi (400 km2) |
| Discharge | |
| • location | Cinebar, Washington |
| • average | 979.8 cuft/s |
| • minimum | 50 cuft/s |
| • maximum | 1,200 cuft/s |
| Basin features | |
| Geographic Names Information System | 1527224 |
The Tilton River is a tributary of the Cowlitz River, in the U.S. state of Washington. Named for the first territorial surveyor for Washington Territory James Tilton (surveyor), it flows for about 29 miles (47 km), entirely within Lewis County.