The McCully Basin is a geologic structural basin in the northern boundary of

Eagle Cap Wilderness Eagle Cap Wilderness is a wilderness area located in the Wallowa Mountains of northeastern Oregon (United States), within the Wallowa–Whitman National Forest.

in northeast

Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...

. The basin is the topographic drainage of McCully Creek. Several Alpine Huts and campsite are located throughout the McCully Basin, which are used as a base camp in the winter for

telemark skiing Telemark skiing is a skiing technique that combines elements of Alpine and Nordic skiing, using the rear foot to keep balance while pushing on the front foot to create a carving turn on downhill skis with toe-only bindings. Telemark skiing is na ...

. McCully Basin starts at the wilderness boundary and runs north-south towards Big Sheep Creek and Tenderfoot Wagon Road. The East Fork of the

Wallowa River The Wallowa River is a tributary of the Grande Ronde River, approximately long, in northeastern Oregon in the United States. It drains a valley on the Columbia Plateau in the northeast corner of the state north of Wallowa Mountains. The Wallowa ...

runs parallel to the McCully Basin to the West of the ridge formed from East Peak, Hidden Peak and Aneroid Mountain. The McCully Basin is named from the Creek which takes its name from Frank D. McCully, a sheep rancher and US representative, notorious supporter of

Chief Joseph ''Hin-mah-too-yah-lat-kekt'' (or ''Hinmatóowyalahtq̓it'' in Americanist orthography), popularly known as Chief Joseph, Young Joseph, or Joseph the Younger (March 3, 1840 – September 21, 1904), was a leader of the Wal-lam-wat-kain (Wallowa ...

Geology

While the Eagle Cap Wilderness is characterized by high alpine lakes, there are no lakes within the McCully Basin. The geology of the peaks surrounding the McCully Basin are basalts that resemble more the strata in the

Columbia River Gorge The Columbia River Gorge is a canyon of the Columbia River in the Pacific Northwest of the United States. Up to deep, the canyon stretches for over as the river winds westward through the Cascade Range, forming the boundary between the sta ...

than to the distinctive slopes of

marble Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or Dolomite (mineral), dolomite. Marble is typically not Foliation (geology), foliated (layered), although there are exceptions. In geology, the ...

and

granite Granite () is a coarse-grained (phaneritic) intrusive igneous rock composed mostly of quartz, alkali feldspar, and plagioclase. It forms from magma with a high content of silica and alkali metal oxides that slowly cools and solidifies undergro ...

in most of the

Wallowa–Whitman National Forest The Wallowa–Whitman National Forest is a United States National Forest in the U.S. states of Oregon and Idaho. Formed upon the merger of the Wallowa and Whitman national forests in 1954, it is located in the northeastern corner of the state, in ...

. Some of the more prominent peaks that border the McCully Basin are Mount Melissa () to the East and

Aneroid Mountain Aneroid Mountain is a peak in the Wallowa Mountains, in Wallowa County, Oregon in the United States. It is located in the McCully Basin within the Eagle Cap Wilderness of the Wallowa National Forest, about south of Joseph. See also *List of mo ...

() to the Southwest.

Ecology

The hydrographic McCully Basin contains two neighboring ecoregions, with unclear ecological boundaries throughout. Surrounding the creek shores and its riparian zones are alpine forests which overlap extended meadows and flatlands that contrast the surrounding peaks.

Flora

The McCully basin starts in the north with formerly diseased forests composed mainly of

Engelmann spruce ''Picea engelmannii'', with the common names Engelmann spruce, white spruce, mountain spruce, and silver spruce, is a species of spruce native to western North America. It is mostly a high-altitude mountain tree but also appears in watered canyon ...

western larch The western larch (''Larix occidentalis'') is a species of larch native to the mountains of western North America (Pacific Northwest, Inland Northwest); in Canada in southeastern British Columbia and southwestern Alberta, and in the United States ...

, scrappy woods of

lodgepole pine ''Pinus contorta'', with the common names lodgepole pine and shore pine, and also known as twisted pine, and contorta pine, is a common tree in western North America. It is common near the ocean shore and in dry montane forests to the subalpine, ...

Douglas fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three va ...

, and an underbrush of

Sitka alder ''Alnus alnobetula'' is a common tree widespread across much of Europe, Asia, and North America. Many sources refer to it as ''Alnus viridis'', the green alder, but botanically this is considered an illegitimate name synonymous with ''Alnus alnob ...

Labrador tea Labrador tea is a common name for three closely related plant species in the genus ''Rhododendron'' as well as an herbal tea made from their leaves. All three species are primarily wetland plants in the heath family. The herbal tea has been a ...

lupin ''Lupinus'', commonly known as lupin, lupine, or regionally bluebonnet etc., is a genus of plants in the legume family Fabaceae. The genus includes over 199 species, with centers of diversity in North and South America. Smaller centers occur ...

and grouseberry.

Fauna

Great Basin wildlife includes

snowshoe hare The snowshoe hare (''Lepus americanus''), also called the varying hare or snowshoe rabbit, is a species of hare found in North America. It has the name "snowshoe" because of the large size of its hind feet. The animal's feet prevent it from sink ...

Red Squirrel The red squirrel (''Sciurus vulgaris'') is a species of tree squirrel in the genus ''Sciurus'' common throughout Europe and Asia. The red squirrel is an arboreal, primarily herbivorous rodent. In Great Britain, Ireland, and in Italy numbers ...

Columbian ground squirrel The Columbian ground squirrel (''Urocitellus columbianus'') is a species of rodent common in certain regions of Canada and the northwestern United States. It is the second largest member of the genus '' Urocitellus'', which is part of the tribe ...

s, and other small

rodent Rodents (from Latin , 'to gnaw') are mammals of the order Rodentia (), which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws. About 40% of all mammal species are rodents. They are na ...

s, which are predominantly nocturnal.

Mule deer The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer. Unlike the related whit ...

are plentiful in the McCully Basin as well as large

elk The elk (''Cervus canadensis''), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common ...

herds. The high elevation ridges are grazed by

mountain goat The mountain goat (''Oreamnos americanus''), also known as the Rocky Mountain goat, is a hoofed mammal endemic to mountainous areas of western North America. A subalpine to alpine species, it is a sure-footed climber commonly seen on cliffs and ...

s. The

American dipper The American dipper (''Cinclus mexicanus''), also known as a water ouzel, is a stocky dark grey bird with a head sometimes tinged with brown, and white feathers on the eyelids that cause the eyes to flash white as the bird blinks. It is long, ...

is also very common in the McCully Basin.

Northern flicker The northern flicker or common flicker (''Colaptes auratus'') is a medium-sized bird of the woodpecker family. It is native to most of North America, parts of Central America, Cuba, and the Cayman Islands, and is one of the few woodpecker spec ...

Clark's nutcracker Clark's nutcracker (''Nucifraga columbiana''), sometimes referred to as Clark's crow or woodpecker crow, is a passerine bird in the family Corvidae, native to the mountains of western North America. The nutcracker is an omnivore, but subsists mai ...

Canada jay The Canada jay (''Perisoreus canadensis''), also known as the gray jay, grey jay, camp robber, or whisky jack, is a passerine bird of the family Corvidae. It is found in boreal forests of North America north to the tree line, and in the Rock ...

, Steller's jay,

olive-sided Flycatcher The olive-sided flycatcher (''Contopus cooperi'') is a small to medium sized passerine bird in the family Tyrannidae, the Tyrant flycatcher family. It is a migratory species that travels from South to North America to breed during the summer. It ...

hermit thrush The hermit thrush (''Catharus guttatus'') is a medium-sized North American thrush. It is not very closely related to the other North American migrant species of ''Catharus'', but rather to the Mexican russet nightingale-thrush. The specific na ...

es,

spotted towhee The spotted towhee (''Pipilo maculatus'') is a large New World sparrow. The taxonomy of the towhees has been debated in recent decades, and until 1995 this bird and the eastern towhee were considered a single species, the rufous-sided towhee. A ...

ruby-crowned kinglet The ruby-crowned kinglet (''Corthylio calendula'') is a very small passerine bird found throughout North America. It is a member of the kinglet family. The bird has olive-green plumage with two white wing bars and a white eye-ring. Males have a ...

winter wren The winter wren (''Troglodytes hiemalis'') is a very small North American bird and a member of the mainly New World wren family Troglodytidae. It was once lumped with the Pacific wren (''Troglodytes pacificus'') of western North America and th ...

s are other common bird species. Sheep and cattle graze throughout Eagle Cap Wilderness, including the surroundings of

Mount Nebo Mount Nebo ( ar, جَبَل نِيبُو, Jabal Nībū; he, , Har Nəḇō) is an elevated ridge located in Jordan, approximately above sea level. Part of the Abarim mountain range, Mount Nebo is mentioned in the Bible as the place where Moses ...

. Shortly after World War II with the impact of the wool industry, the number of sheep nearly disappeared in the Eagle Cap Wilderness, while at the beginning of the 1900, their numbers exceeded the

carrying capacity The carrying capacity of an environment is the maximum population size of a biological species that can be sustained by that specific environment, given the food, habitat, water, and other resources available. The carrying capacity is defined as t ...

of the wilderness.

Access

Access to McCully Basin is from the McCully trailhead at the north boundary of the wilderness, southeast of the city of

Joseph Joseph is a common male given name, derived from the Hebrew Yosef (יוֹסֵף). "Joseph" is used, along with "Josef", mostly in English, French and partially German languages. This spelling is also found as a variant in the languages of the mo ...

. The trail parallels Mt Howard trail at the western shore of McCully Creek. For two miles an unsurfaced and unmaintained temporary access road accompanies the trail towards Mt Howard. This marks the beginning of the Eagle Cap Wilderness. The trail ends at Tenderfoot Wagon Road, approximately from the McCully Trailhead. This area is surrounded by Big Sheep Creek, its North Fork and other tributaries. Wilderness visitor permit is required for transit within the Eagle Cap Wilderness area.

References

{{reflist Eagle Cap Wilderness Old-growth forests