| Rainbow Mountain | |
| Elevation Ft: | 7619 |
| Elevation Ref: | [1] |
| Range: | Cascade Range |
| Location: | Siskiyou County, California, U.S. |
| Map: | USA California#USA |
| Label Position: | below |
| Coordinates: | 41.4735°N -121.9561°W |
| Topo: | USGS Rainbow Mountain |
| Type: | Stratovolcano |
| Volcanic Arc/Belt: | Cascade Volcanic Arc |
| Last Eruption: | Pleistocene age |
Rainbow Mountain is a stratovolcano at the southern end of the Cascade Range in Siskiyou County, California. It is located between Mount Shasta and the Medicine Lake Volcano, consisting of andesitic and dacitic rocks that were produced during the Early Pleistocene subepoch. Its last known eruption is also of Pleistocene age.[1]