| Grass Mountain | |
| Elevation Ft: | 3607 |
| Elevation Ref: | [1] |
| Prominence Ft: | 2163 |
| Map: | Oregon#USA |
| Location: | Benton County, Oregon, U.S. |
| Coordinates: | 44.424°N -123.6729°W |
| Coordinates Ref: | [2] |
| Topo: | USGS Grass Mountain |
Grass Mountain is a 3607feet tall mountain in the Central Oregon Coast Range in the U.S. state of Oregon. Located in Benton County, it is the second highest peak in the Central Coast Range.[3]
The Oregon Department of Forestry built 40feet lookout tower on the summit in 1935. It was decommissioned and dismantled in 1968.[4]