Mount Aix
Mount Aix, northwest aspect
Highest point
Elevation	7,766 ft (2,367 m)[1]
Prominence	3,296 ft (1,005 m)[1]
Parent peak	Old Snowy Mountain[2]
Isolation	20.67 mi (33.27 km)[2]
Coordinates	46°47′42″N 121°15′21″W / 46.7950218°N 121.2558375°W / 46.7950218; -121.2558375[3]
Geography
Mount Aix Location of Mount Aix in Washington Show map of Washington (state) Mount Aix Mount Aix (the United States) Show map of the United States
Country	United States
State	Washington
County	Yakima
Protected area	William O. Douglas Wilderness
Parent range	Cascades
Topo map	USGS Bumping Lake
Geology
Mountain type	Stratovolcano, volcanic complex
Climbing
Easiest route	Trail class 1

Mount Aix is a 7,766-foot (2,367 m) mountain summit in Yakima County of Washington state.

Description

Mount Aix is set in the William O. Douglas Wilderness on land administered by the Wenatchee National Forest and is the highest point in the wilderness area.^[1] Mount Aix is situated east of the crest of the Cascade Range, southeast of Bumping Lake, north of Bismarck Peak, and northwest of Rimrock Lake. It is also 24 miles east-southeast of Mount Rainier. The nearest higher peak is Tieton Peak in the Goat Rocks Wilderness, 19.9 mi (32.0 km) to the south-southwest.^[1] Mount Aix is the highest peak in the entire region which is east of Mount Rainier National Park, north of Goat Rocks Wilderness, west of Yakima, and south of Mount Daniel (Alpine Lakes Wilderness), so it is quite prominent. Prior to 1897 (when Mount Aix was officially recognized by the USGS) the toponym was spelled as Mount Aiks on early survey maps^[3] and publications.^[4]

Climate

Mount Aix is located east of the Cascade crest. Most weather fronts originate in the Pacific Ocean, and travel northeast toward the Cascade Mountains. As fronts approach, they are forced upward by the peaks of the Cascade Range (orographic lift), causing them to drop their moisture in the form of rain or snowfall onto the Cascades. As a result, the east side of the Cascades experiences less precipitation than the west side of the crest. 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.^[5] Precipitation runoff from Mount Aix drains into tributaries of the Yakima River, thence into the Columbia River.

Geology

Mount Aix is a volcanic complex, mostly referred to as the Mount Aix Volcanic Complex.