| Motte Rimrock Reserve | |
|---|---|
   | |
| Location | Riverside County, California |
| Coordinates | 33°48′45″N 117°15′30″W / 33.81250°N 117.25833°W |
| Area | 736 acres (1.150 sq mi) |
| Governing body | University of California, Riverside |
| Website | http://motte.ucr.edu/ |
The Motte Rimrock Reserve, a unit of the University of California Natural Reserve System affiliated with the University of California, Riverside, is an ecological reserve and biological field station located on a small plateau overlooking the Perris Valley in west-central Riverside County, California, United States.