| Kelsey Creek | |
|---|---|
&sq=Google&lang=en&file=File:Kelsey_Creek.jpg) Kelsey Creek, looking south from the Lake County Veterans Bridge in Kelseyville | |
&sq=Google&lang=en&file=File:Relief_map_of_California.png)  | |
| Location | |
| Country | United States |
| State | California |
| County | Lake County |
| Physical characteristics | |
| Source | Cobb Mountain |
| • coordinates | 38°48′39″N 122°43′49″W / 38.810951°N 122.730355°W |
| • elevation | 3,840 feet (1,170 m) |
| Mouth | Clear Lake |
• location | Clear Lake State Park |
• coordinates | 39°01′18″N 122°48′54″W / 39.021722°N 122.814972°W |
• elevation | 1,318 feet (402 m) |
| Length | 22.5 miles (36.2 km) |
| Basin size | 28,614 acres (11,580 ha) |
| Discharge | |
| • location | Clear Lake |
| • average | 81.9 cubic feet (2.32 m3) per second |
| Basin features | |
| Tributaries | |
| • left | Alder Creek, High Valley Creek, Widow Creek |
| • right | Jones Creek, Houghton Creek, Sulphur Creek, Sweetwater Creek |
Kelsey Creek is a watercourse in Lake County, California, United States, that feeds Clear Lake from the south. Originally forest-covered, the watershed has been converted in the lower parts to farmland and for urban use. Higher up, the forests have been cleared, regrown, and cleared again. The northern part of the creek flows through a geothermal field that feeds power plants and hot springs. The wooded Cobb area in the higher part of the watershed was once home to resorts as early as the 1850s.