Lewis River (Washington)
| Lewis River | |
|---|---|
Lower Falls of the Lewis River | |
| Etymology | A. Lee Lewis, early settler |
| Location | |
| Country | United States |
| State | Washington |
| County | Skamania, Clark, and Cowlitz |
| Physical characteristics | |
| Source | Mount Adams |
| • location | Cascade Range, Skamania County, Washington |
| • coordinates | 46°13′28″N 121°31′44″W / 46.22444°N 121.52889°W |
| • elevation | 7,194 ft (2,193 m) |
| Mouth | Columbia River |
• location | opposite St. Helens, Oregon, and on the border between Cowlitz and Clark counties, Washington |
• coordinates | 45°51′04″N 122°46′49″W / 45.85111°N 122.78028°W |
• elevation | 10 ft (3.0 m) |
| Length | 95 mi (153 km) |
| Basin size | 1,046 sq mi (2,710 km2) |
| Discharge | |
| • location | mouth (average); max and min at Ariel, WA |
| • average | 6,125 cu ft/s (173.4 m3/s) |
| • minimum | 807.2 cu ft/s (22.86 m3/s) |
| • maximum | 129,000 cu ft/s (3,700 m3/s) |
The Lewis River is a tributary of the Columbia River, about 95 miles (153 km) long, in southwestern Washington in the United States. It drains part of the Cascade Range north of the Columbia River. The drainage basin of the Lewis River covers about 1,046 square miles (2,709 km2). The river's mean annual discharge is about 6,125 cubic feet per second (173.4 m3/s). Unlike nearby Lewis County and Fort Lewis the Lewis River was not named for Meriwether Lewis, but rather for A. Lee Lewis, an early pioneer who homesteaded near the mouth of the river.