| White Mountain | |
|---|---|
White Mountain | |
| Highest point | |
| Elevation | 6,378 ft (1,944 m)[1] |
| Prominence | 520 ft (160 m)[2] |
| Parent peak | Mount LaCrosse (6,417 ft)[3] |
| Isolation | 0.95 mi (1.53 km)[3] |
| Coordinates | 47°40′36″N123°19′43″W / 47.676622°N 123.328645°W /47.676622; -123.328645[2] |
| Geography | |
| Country | United States |
| State | Washington |
| County | Jefferson |
| Protected area | Olympic National Park |
| Parent range | Olympic Mountains |
| Topo map | USGSMount Steel |
| Geology | |
| Rock age | Eocene |
| Climbing | |
| Easiest route | class 2scrambling[4] |
White Mountain is a 6,378-foot (1,944-metre) mountainsummit located in theOlympic Mountains, inJefferson County ofWashington state.[1] Situated inOlympic National Park, its nearest higher neighbor isMount LaCrosse, 0.95 mi (1.53 km) to the northeast, and an unnamed glacier lies in the north cirque between the two peaks.[2] TheAnderson massif lies 3.1 mi (5.0 km) to the north of White Mountain. Precipitationrunoff from the mountain drains into tributaries of theQuinault River andDuckabush River.

Based on theKöppen climate classification, White Mountain is located in themarine west coast climate zone of western North America.[5]Weather fronts originating in the Pacific Ocean travel northeast toward the Olympic Mountains. As fronts approach, they are forced upward by the peaks (orographic lift), causing them to drop their moisture in the form of rain or snow. As a result, the Olympics experience high precipitation, especially during the winter months in the form of snowfall.[6] Because ofmaritime influence, snow tends to be wet and heavy, resulting inavalanche danger. During winter months weather is usually cloudy, but due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.[6] The months of July through September offer the most favorable weather for climbing.
The Olympic Mountains are composed ofobductedclastic wedge material and oceanic crust, primarilyEocenesandstone,turbidite, andbasaltic oceanic crust.[7] The mountains were sculpted during thePleistocene era by erosion and glaciers advancing and retreating multiple times.
