Rock Creek (Palouse River tributary)
| Rock Creek | |
|---|---|
Rock Creek flows through Hole in the Ground Coulee between Bonnie Lake and Rock Lake. | |
| Location | |
| Country | United States |
| State | Washington |
| County | Spokane, Adams, Whitman |
| Physical characteristics | |
| Source | Turnbull National Wildlife Refuge |
| • location | Pine Lakes, Spokane County |
| • coordinates | 47°23′55″N 117°32′41″W / 47.39861°N 117.54472°W |
| • elevation | 2,226 ft (678 m) |
| Mouth | Palouse River |
• location | near Winona, Whitman County |
• coordinates | 46°54′45″N 117°55′41″W / 46.91250°N 117.92806°W |
• elevation | 1,280 ft (390 m) |
| Length | 52 mi (84 km) |
| Basin size | 430 sq mi (1,100 km2) |
Rock Creek is a tributary of the Palouse River in the U.S. state of Washington. The source of the creek is Pine Lakes in the Turnbull National Wildlife Refuge (TNWR). The creek flows through the TNWR and ultimately joins the Palouse River 6 miles (10 km) downstream from the unincorporated town of Winona, Washington.
Rock Creek drains a basin of 430 square miles (1,100 km2), 13 percent of the Palouse River basin. Rock Creek drains Rock Lake and, upstream from that, Bonnie Lake. Rock Lake has a maximum depth of 350 feet (110 m) and a mean depth of 170 feet (52 m). Lakes within the Rock Creek drainage with managed fisheries include Rock and Bonnie Lakes and Chapman Lake. Many small lakes in the drainage have no outlets, and some evaporate completely in dry weather.