The Sky Lakes Wilderness is a

wilderness area Wilderness or wildlands (usually in the plural), are natural environments on Earth that have not been significantly modified by human activity or any nonurbanized land not under extensive agricultural cultivation. The term has traditionally re ...

located in the Rogue River–Siskiyou and Fremont–Winema national forests in the southern

Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...

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 ...

in the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

. It comprises , of which are in the Rogue River–Siskiyou National Forest and are in the Fremont–Winema National Forest. It was established in 1984 under the

Wilderness Act The Wilderness Act of 1964 () was written by Howard Zahniser of The Wilderness Society. It created the legal definition of wilderness in the United States, and protected 9.1 million acres (37,000 km²) of federal land. The result of a lon ...

of 1964.

Topography

The Sky Lakes Wilderness straddles southern Oregon's Cascade Range from

Crater Lake National Park Crater Lake National Park is an American national park located in southern Oregon. Established in 1902, Crater Lake is the fifth-oldest national park in the United States and the only national park in Oregon. The park encompasses the caldera of ...

southward to

Oregon Route 140 Oregon Route 140 (OR 140) is a state highway in southern Oregon, United States. It is the longest state highway in Oregon, running from the community of White City, Oregon (just north of Medford), through Klamath Falls and on to Lakeview. It ...

. It is approximately wide and long, with elevations ranging from in the canyon of the Middle Fork of the Rogue River to at the top of

Mount McLoughlin Mount McLoughlin is a dormant steep-sided stratovolcano, or composite volcano, in the Cascade Range of southern Oregon and within the United States Sky Lakes Wilderness. It is one of the volcanic peaks in the Cascade Volcanic Arc, within the Hi ...

, the highest peak in southern Oregon and the highest point in the Cascade Range between the Three Sisters and

Mount Shasta Mount Shasta ( Shasta: ''Waka-nunee-Tuki-wuki''; Karuk: ''Úytaahkoo'') is a potentially active volcano at the southern end of the Cascade Range in Siskiyou County, California. At an elevation of , it is the second-highest peak in the Cascades ...

. The Wilderness contains more than 200 pools of water, from small ponds to lakes of . Fourmile Lake, near the southern end of the area, exceeds . Several of the lakes at Sky Lakes, including Alta and Natasha, were found to have among the most chemically pure water known of all lakes in the world.

Geology

Geologic studies indicate that the earliest rocks in this part of the High Cascades began forming when a chain of volcanoes erupted between five and three million years ago. During the last glacial period, the composite volcanoes of

Mount Mazama Mount Mazama (''Giiwas'' in the Native American language Klamath language, Klamath) is a complex volcano in the state of Oregon, United States, in a segment of the Cascade Volcanoes, Cascade Volcanic Arc and Cascade Range. Most of the mountai ...

and Mount McLoughlin began their initial build-up. On their north and east slopes, Mount McLoughlin and other peaks bear scars caused by

glacier A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its Ablation#Glaciology, ablation over many years, often Century, centuries. It acquires dis ...

s. Like most other major drainages within the Sky Lakes Wilderness, Seven Lakes Basin and the deep canyon of the Middle Fork of the Rogue River were carved by the massive ice fields that covered the highest elevations of the Cascades. Approximately 6,700 years ago, when Mount Mazama exploded, collapsed, and formed the caldera of

Crater Lake Crater Lake (Klamath language, Klamath: ''Giiwas'') is a volcanic crater lake in south-central Oregon in the western United States. It is the main feature of Crater Lake National Park and is famous for its deep blue color and water clarity. The ...

, some of the vast amount of rock and ash thrown into the air landed in the northern portion of the Sky Lakes Wilderness, creating the pumice-covered Oregon Desert.

Vegetation

Many plant species thrive in the Sky Lakes Wilderness, including nearly two dozen tree species. These range from the

Pacific yew ''Taxus brevifolia'', the Pacific yew or western yew, is a species of tree in the yew family Taxaceae native to the Pacific Northwest of North America. It is a small evergreen conifer, thriving in moisture and otherwise tending to take the form o ...

and

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 ...

in the lowlands to the

mountain hemlock ''Tsuga mertensiana'', known as mountain hemlock, is a species of hemlock native to the west coast of North America, found between Southcentral Alaska and south-central California. Description ''Tsuga mertensiana'' is a large evergreen conifer ...

and

subalpine fir ''Abies lasiocarpa'', the subalpine fir or Rocky Mountain fir, is a western North American fir tree. Description ''Abies lasiocarpa'' is a medium-sized evergreen conifer with a very narrow conic crown, growing to tall, exceptionally , with a ...

at the higher elevations.

Shasta red fir ''Abies magnifica'', the red fir or silvertip fir, is a western North American fir, native to the mountains of southwest Oregon and California in the United States. It is a high-elevation tree, typically occurring at elevation, though only rare ...

dominates much of the wilderness, and

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, ...

is common but is in its element in the Oregon Desert portion of the wilderness.

Whitebark pine ''Pinus albicaulis'', known by the common names whitebark pine, white bark pine, white pine, pitch pine, scrub pine, and creeping pine, is a conifer tree native to the mountains of the western United States and Canada, specifically subalpine ...

is an uncommon tree in the area but can be found high on the slopes of Mount McLoughlin and Devil's Peak. The forest's understory is dominated by species of

huckleberry Huckleberry is a name used in North America for several plants in the family Ericaceae, in two closely related genera: ''Vaccinium'' and ''Gaylussacia''. The huckleberry is the state fruit of Idaho. Nomenclature The name 'huckleberry' is a Nort ...

manzanita Manzanita is a common name for many species of the genus ''Arctostaphylos''. They are evergreen shrubs or small trees present in the chaparral biome of western North America, where they occur from Southern British Columbia and Washington to Or ...

kinnikinnick Kinnikinnick is a Native American and First Nations herbal smoking mixture, made from a traditional combination of leaves or barks. Recipes for the mixture vary, as do the uses, from social, to spiritual to medicinal. Etymology The term "kinni ...

, snowbrush, and heather.Sky Lakes Wilderness
- Wilderness.net

Wildlife

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 spend much of the summer and early fall in the northern third of the Sky Lakes Wilderness. The entire wilderness supports roving populations

pine marten The European pine marten (''Martes martes''), also known as the pine marten, is a mustelid native to and widespread in most of Europe, Asia Minor, the Caucasus and parts of Iran, Iraq and Syria. It is listed as Least Concern on the IUCN Red List. ...

s and

fishers Fisher is an archaic term for a fisherman, revived as gender-neutral. Fisher, Fishers or The Fisher may also refer to: Places Australia *Division of Fisher, an electoral district in the Australian House of Representatives, in Queensland *Elect ...

, black bears,

cougar The cougar (''Puma concolor'') is a large Felidae, cat native to the Americas. Its Species distribution, range spans from the Canadian Yukon to the southern Andes in South America and is the most widespread of any large wild terrestrial mamm ...

coyote The coyote (''Canis latrans'') is a species of canis, canine native to North America. It is smaller than its close relative, the wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecologica ...

s, as well as

pika A pika ( or ; archaically spelled pica) is a small, mountain-dwelling mammal found in Asia and North America. With short limbs, very round body, an even coat of fur, and no external tail, they resemble their close relative, the rabbit, but wi ...

golden-mantled ground squirrel The golden-mantled ground squirrel (''Callospermophilus lateralis'') is a ground squirrel native to western North America. It is distributed in the Rocky Mountains of British Columbia and Alberta, and through much of the western United States. ...

goshawk Goshawk may refer to several species of birds of prey, mainly in the genus ''Accipiter'': * Northern goshawk, ''Accipiter gentilis'', often referred to simply as the goshawk, since it is the only goshawk found in much of its range (in Europe and N ...

s and various other species of wildlife. During October and November, migrating birds pass over in the hundreds of thousands, often stopping at the high lakes.

Osprey The osprey (''Pandion haliaetus''), , also called sea hawk, river hawk, and fish hawk, is a diurnal, fish-eating bird of prey with a cosmopolitan range. It is a large raptor reaching more than in length and across the wings. It is brown o ...

eagle Eagle is the common name for many large birds of prey of the family Accipitridae. Eagles belong to several groups of genera, some of which are closely related. Most of the 68 species of eagle are from Eurasia and Africa. Outside this area, just ...

s, and other large

hawks Hawks are birds of prey of the family Accipitridae. They are widely distributed and are found on all continents except Antarctica. * The subfamily Accipitrinae includes goshawks, sparrowhawks, sharp-shinned hawks and others. This subfamily a ...

can occasionally be seen around the Sky Lakes. Uncommon animals in the area include the

yellow-bellied marmot The yellow-bellied marmot (''Marmota flaviventris''), also known as the rock chuck, is a large, stout-bodied ground squirrel in the marmot genus. It is one of fourteen species of marmots, and is native to mountainous regions of southwestern Canad ...

, the

fisher Fisher is an archaic term for a fisherman, revived as gender-neutral. Fisher, Fishers or The Fisher may also refer to: Places Australia *Division of Fisher, an electoral district in the Australian House of Representatives, in Queensland *Elect ...

, and the pine marten. Game fish are stocked annually in the Sky Lakes by the State of Oregon. These include

brook trout The brook trout (''Salvelinus fontinalis'') is a species of freshwater fish in the char genus ''Salvelinus'' of the salmon family Salmonidae. It is native to Eastern North America in the United States and Canada, but has been introduced elsewhere ...

rainbow trout The rainbow trout (''Oncorhynchus mykiss'') is a species of trout native to cold-water tributaries of the Pacific Ocean in Asia and North America. The steelhead (sometimes called "steelhead trout") is an anadromous (sea-run) form of the coasta ...

cutthroat trout The cutthroat trout is a fish species of the family Salmonidae native to cold-water tributaries of the Pacific Ocean, Rocky Mountains, and Great Basin in North America. As a member of the genus '' Oncorhynchus'', it is one of the Pacific tro ...

, and kokanee. Cutthroat trout are only stocked in Big Heavenly Twin and Isherwood lakes, and kokanee are only stocked at Fourmile Lake.Sky Lakes Wilderness, Oregon
- GORP

History

Beginning several thousand years ago, Native American groups, ancestors of the

Klamath Klamath may refer to: Ethnic groups *Klamath people, a Native American people of California and Oregon **Klamath Tribes, a federally recognized group of tribes in Oregon *Klamath language, spoken by the Klamath people Places in the United States * ...

and the

Takelma The Takelma (also Dagelma) are a Native American people who originally lived in the Rogue Valley of interior southwestern Oregon. Most of their villages were sited along the Rogue River. The name ''Takelma'' means "(Those) Along the River". His ...

people, hunted game and gathered huckleberries in the Sky Lakes Wilderness. However, prehistoric visitors did not spend a significant amount of time in the area due to the short season of mild weather and the limited variety of food plants and animals. Prehistoric stone tools have been found in the wilderness. The early non-native settlers hunted, trapped beaver and marten, and grazed their stock in the high meadows. Settlers from lower-elevation communities would travel to pick huckleberries at places like Stuart Falls and Twin Ponds. After 1906, the newly established

United States Forest Service The United States Forest Service (USFS) is an agency of the U.S. Department of Agriculture that administers the nation's 154 national forests and 20 national grasslands. The Forest Service manages of land. Major divisions of the agency inc ...

built trails and fire lookouts within the Sky Lakes area.

Recreation

The

Pacific Crest Trail The Pacific Crest Trail (PCT), officially designated as the Pacific Crest National Scenic Trail, is a long-distance hiking and equestrian trail closely aligned with the highest portion of the Cascade and Sierra Nevada mountain ranges, which lie ...

passes through the entire Sky Lakes Wilderness from north to south for about . The three main lake basins see quite a bit of use, particularly at the larger lakes, which are popular fishing, hiking, and camping destinations. Hunting is popular in the wilderness, especially for elk.

Points of interest

The Twin Ponds Trail follows the route of the old Rancheria Trail, a Native American travel route. In 1863, it was widened and used as a military wagon road between

Jacksonville Jacksonville is a city located on the Atlantic coast of northeast Florida, the most populous city proper in the state and is the List of United States cities by area, largest city by area in the contiguous United States as of 2020. It is the co ...

and

Fort Klamath Fort Klamath was a military outpost near the western end of the Oregon Trail, between Crater Lake National Park and Upper Klamath Lake in Klamath County, Oregon, United States. The Fort Klamath Site, about a mile southeast of the present community ...

. This portion of the Rancheria Trail is listed on the

National Register of Historic Places The National Register of Historic Places (NRHP) is the United States federal government's official list of districts, sites, buildings, structures and objects deemed worthy of preservation for their historical significance or "great artistic v ...

, and many segments of the old wagon route are visible from the trail. At the southeast end of Island Lake is Waldo Tree. This inscribed Shasta red fir bears the carved names of early-day Oregon conservationist Judge John B. Waldo and four companions. In 1888, these men hiked south along the crest of the Cascades, from Waldo Lake to Mount Shasta. They were the first recorded party to travel much of the general route of what is now the Pacific Crest Trail.