Larch Mountain (Multnomah County, Oregon)
| Larch Mountain | |
|---|---|
Larch Mountain, as seen from Washougal, Washington. | |
| Highest point | |
| Elevation | 4,061 ft (1,238 m) NAVD 88 |
| Prominence | 975 ft (297 m) |
| Coordinates | 45°31′57″N 122°5′17″W / 45.53250°N 122.08806°W |
| Geography | |
| Location | Multnomah County, Oregon, U.S. |
| Topo map | USGS Multnomah Falls |
| Geology | |
| Rock age | 1.8–1.4 Ma |
| Mountain type | Shield volcano |
| Volcanic field | Boring Lava Field |
| Last eruption | 1.4 Ma |
| Climbing | |
| Easiest route | paved road (June–October) hiking trails (November–May) |
Larch Mountain is an extinct volcano near Portland, Oregon. The name is misleading, as no western larch (a large coniferous tree) can be found there. It received that name when early lumbermen sold the noble fir wood as larch. The peak can be reached between May and November on paved Larch Mountain Road, 16 mi (26 km) east of Corbett, Oregon, although the road is closed during the winter and spring months. The road leading to Larch Mountain from the Historic Columbia River Highway is 14 miles long, which closed at milepost 10 from Nov. through late May or early June due to snow.