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Mount Jefferson Wilderness
IUCN Category Ib (Wilderness Area)
Location Linn / Jefferson / Marion counties, Oregon, USA
Nearest city Sisters, Oregon
Coordinates 44°40′31.05″N 121°47′54.40″W / 44.6752917°N 121.798444°W / 44.6752917; -121.798444Coordinates: 44°40′31.05″N 121°47′54.40″W / 44.6752917°N 121.798444°W / 44.6752917; -121.798444
Area 111,177-acre (449.9 km2)
Established 1968
Governing body United States Forest Service

The Mount Jefferson Wilderness is a wilderness area located on and around Mount Jefferson in the central Cascade Range of Oregon in the United States. It is situated where the Willamette, Deschutes, and Mount Hood National Forests meet. Mount Jefferson Wilderness is the second most visited Oregon wilderness area after the Three Sisters Wilderness.[1]

Jefferson Park Meadows, Mount Jefferson Wilderness, Oregon

Contents

Geography

Mount Jefferson

At 10,497 feet (3,199 m), Mount Jefferson is the second tallest mountain in Oregon. It is a stratovolcano with slopes mantled by five glaciers - Whitewater, Waldo, Milk Creek, Russell, and Jefferson Park. Three Fingered Jack is a heavily eroded and deeply glaciated shield volcano and consists mainly of basaltic andesite lava.[2] At 7,841 feet (2,390 m), it is made up of the solidified lava plug flanked by ridges of the old volcano's subsidiary lava dikes and lies at the southern end of the Mount Jefferson Wilderness.[1] Other geographic features of the wilderness include steep talus slopes, rock outcrops, and alpine meadows.[3]

Marion Lake is situated within the wilderness area.

Vegetation

Vegetation in Mount Jefferson Wilderness is predominantly Douglas-fir, silver fir, sub-alpine fir, mountain hemlock, lodgepole pine, ponderosa pine, several species of cedar as well as species such as vine maple, huckleberry and rhododendron.[3] Lupine, red paintbrush, bear grass, and various species of lily are also common in the wilderness.[1]

Wildlife

Common wildlife found in Mount Jefferson Wilderness include deer, black bear, coyotes, and bald eagles.[1] The Wilderness also includes Marion Lake, which is a breeding location for amphibians such as the Rough-skinned Newt.[4]

Recreation

Common recreational activities in Mount Jefferson Wilderness include hiking, backpacking, camping, cross-country skiing, wildlife watching, and mountain climbing on Mount Jefferson and Three Fingered Jack. There are some 190 miles (310 km) of trails in the wilderness, including a 40-mile (64 km) stretch of the Pacific Crest National Scenic Trail.[3]

References

  1. ^ a b c d Sullivan, William L. (2002). Thurman, Paula (Ed.). ed. Exploring Oregon's Wild Areas (3rd ed.). The Mountaineers Books. 
  2. ^ "Cascade Range Volcanoes Summaries". USGS Cascades Volcano Observatory. http://vulcan.wr.usgs.gov/Volcanoes/Cascades/volcanoes_cascade_range.html#three_fingered_jack. Retrieved 2008-04-01. 
  3. ^ a b c Willamette National Forest - Mount Jefferson Wilderness
  4. ^ C. Michael Hogan (2008) Rough-skinned Newt (Taricha granulosa), Globaltwitcher, ed. Nicklas Stromberg [1]

See also

External links

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