| Tumalo Mountain | |
| Elevation Ft: | 7779 |
| Elevation Ref: | [1] |
| Prominence Ft: | 1055 |
| Prominence Ref: | [2] |
| Location: | Deschutes County, Oregon, U.S. |
| Range: | Cascade Range |
| Coordinates: | 44.0054°N -121.6427°W |
| Topo: | USGS Broken Top |
| Type: | Shield volcano |
| Volcanic Arc: | Cascade Volcanic Arc |
| Easiest Route: | Trail hike[3] |
Tumalo Mountain is a shield volcano in the Cascade Range of central Oregon, located just northeast of Mount Bachelor across the Cascade Lakes Scenic Byway.
Ice age glaciers carved a large cirque into the northeast flank of the mountain, producing a bowl which is popular with local backcountry skiers. A United States Forest Service fire lookout tower was built on the summit in the 1930s, but abandoned in the 1970s and subsequently removed.
The volcano's southwest flank is home to a route that leads to the top.
One can see Broken Top, Mt. Bachelor, and the Three Sisters Complex.[4]