| West Hartley | |
| Settlement Type: | Former settlement |
| Pushpin Map: | California#USA |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in California |
| Pushpin Image: | California Locator Map with US.PNG |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | California |
| Subdivision Type2: | County |
| Subdivision Name2: | Contra Costa County |
| Coordinates: | 37.9406°N -121.8128°W |
| Elevation M: | 134 |
| Elevation Ft: | 440 |
West Hartley was an unincorporated community in eastern Contra Costa County, California. It was located 7miles northeast of Mount Diablo, at an elevation of 440 feet (134 m). It is now a ghost town. It was a mining town for the nearby coal mines.[1]
It was founded in the late 1880s and named for England's West Hartley coal mine.