|Location||Del Norte / Siskiyou / Humboldt counties, California, United States|
|Nearest city||Crescent City, California|
|Area||182,802 acres (739.77 km2)|
|Governing body||U.S. Forest Service|
The Siskiyou Wilderness is a federal wilderness area designated by the passage of the California Wilderness Act of 1984. Originally, the land area was 153,000 acres (620 km2) The Northern California Wild Heritage Act of 2006 added 30,122 acres (121.90 km2) for the current total of 182,802 acres (739.77 km2). All of the wilderness is in Northern California and is managed by the U.S. Forest Service. The wilderness spans three national forests: the Rogue River–Siskiyou, the Klamath, and the Six Rivers.
The Siskiyou Mountains form one of the longest continuous crests in the Klamath Mountains region. Elevations range from 770 feet (230 m) to the summit of Preston Peak at 7,309 feet (2,228 m) above sea level. Trending in a north–south direction from the Oregon border down to near the town of Weitchpec and 20 miles (32 km) inland from the Pacific Ocean, the Siskiyous are dotted by rocky peaks rising over 6,000 feet (1,800 m) from the surrounding lowlands.
The Siskiyou Wilderness contains a diverse collection of conifer species including rarities such as Alaska cedar, Port Orford cedar, and the Klamath Mountains-endemic Brewer spruce.It is notable for the vast amounts of old-growth forests and many endemic species of wildflowers, shrubs and trees, as well as one of the world's largest concentrations of lilies.
The wilderness is home to several rare species, including wolverine, martin, fisher, northern spotted owl and Roosevelt elk. There is also black bear, black-tailed deer, and many varieties of birds. The clear streams provide spawning grounds for steelhead, coho and Chinook salmon.
The Clear Creek National Recreation Trail crosses 20.5 miles (33.0 km) of the northern portion and provides access to some of the more scenic parts of the wilderness—from near the Klamath River to the Smith River (California) divide. In the southern part of the wilderness, the Kelsey National Recreation Trail begins at Bear Lake, and the experienced hiker can walk for about 20 miles (32 km) to the Smith River. The most heavily visited areas are in the northwest corner of the region—concentrated on trails that lead to lakes. Much of the area lacks trails and is difficult to access cross-country because of the dense brush. The Bigfoot Trail traverses the crest of the wilderness from north to south, through some of the most remote areas.
|Climate data for Siskiyou National Wilderness|
|Record high °F (°C)||69|
|Average high °F (°C)||50|
|Average low °F (°C)||31|
|Record low °F (°C)||7|
|Average precipitation inches (mm)||9.16|
|Average snowfall inches (cm)||3.40|
The Klamath Mountains are a rugged and lightly populated mountain range in northwestern California and southwestern Oregon in the western United States. As a mountain system within both the greater Pacific Coast Ranges and the California Coast Ranges, the Klamath Mountains have a varied geology, with substantial areas of serpentinite and marble, and a climate characterized by moderately cold winters with very heavy snowfall and warm, very dry summers with limited rainfall, especially in the south. As a consequence of the geology and soil types, the mountains harbor several endemic or near-endemic trees, forming one of the largest collections of conifers in the world. The mountains are also home to a diverse array of fish and animal species, including black bears, large cats, owls, eagles, and several species of Pacific salmon. Millions of acres in the mountains are managed by the United States Forest Service. The northernmost and largest sub-range of the Klamath Mountains are the Siskiyou Mountains.
The Siskiyou Mountains are a coastal subrange of the Klamath Mountains, and located in northwestern California and southwestern Oregon in the United States. They extend in an arc for approximately 100 miles (160 km) from east of Crescent City, California, northeast along the north side of the Klamath River into Josephine and Jackson counties in Oregon. The mountain range forms a barrier between the watersheds of the Klamath River to the south and the Rogue River to the north. Accordingly, much of the range is within the Rogue River – Siskiyou and Klamath national forests, and the Pacific Crest Trail follows a portion of the crest of the Siskiyous.
The Trinity Alps are a mountain range in Trinity County and Siskiyou County in Northern California. They are a subrange of the Klamath Mountains located to the north of Weaverville.
The Shasta–Trinity National Forests are federally designated forests in northern California, United States. Combined, they are the largest National Forest in California and are managed by the U.S. Forest Service. The 2,210,485 acre combined-forest encompasses five wilderness areas, hundreds of mountain lakes and 6,278 miles (10,103 km) of streams and rivers. Major features include Shasta Lake, the largest man-made lake in California and Mount Shasta, elevation 14,179 feet (4,322 m).
Umpqua National Forest, in southern Oregon's Cascade Range, covers an area of 983,129 acres (3,978.58 km2) in Douglas, Lane, and Jackson counties, and borders Crater Lake National Park. The four ranger districts for the forest are the Cottage Grove, Diamond Lake, North Umpqua, and Tiller ranger districts. The forest is managed by the United States Forest Service, headquartered in Roseburg.
The Rogue River–Siskiyou National Forest is a United States National Forest in the U.S. states of Oregon and California. The formerly separate Rogue River and Siskiyou National Forests were administratively combined in 2004. Now, the Rogue River–Siskiyou National Forest ranges from the crest of the Cascade Range west into the Siskiyou Mountains, covering almost 1.8 million acres (7,300 km2). Forest headquarters are located in Medford, Oregon.
The Red Buttes Wilderness is a wilderness area in the Klamath and Rogue River national forests in the U.S. states of Oregon and California. It comprises 19,940 acres (8,070 ha), approximately 16,190 acres (6,550 ha) of which is located in California, and 3,750 acres (1,520 ha) in Oregon. It was established by the California Wilderness Act of 1984 and the Oregon Wilderness Act of 1984.
The Rogue–Umpqua Divide Wilderness is a wilderness area located in the Rogue River – Siskiyou and Umpqua National Forests in the Klamath Mountains of Oregon, United States. It was established by the United States Congress in 1984 and comprises 33,200 acres (13,400 ha).
The Sky Lakes Wilderness is a wilderness area located in the Rogue River–Siskiyou and Fremont–Winema national forests in the southern Cascade Range of Oregon in the United States. It comprises 116,300 acres (47,100 ha), of which 75,695 acres (30,633 ha) are in the Rogue River–Siskiyou National Forest and 40,605 acres (16,432 ha) are in the Fremont–Winema National Forest. It was established in 1984 under the Wilderness Act of 1964.
Grassy Knob Wilderness is a wilderness area in the Klamath Mountains of southwestern Oregon, within the Rogue River-Siskiyou National Forest. It was designated wilderness by the United States Congress in 1984 and now comprises a total of 17,200 acres (6,961 ha). Like most wilderness areas in Oregon, Grassy Knob is managed by the Forest Service.
The Snow Mountain Wilderness is a 60,076-acre (243.12 km2) federally designated wilderness area located 65 miles (105 km) north of Santa Rosa, California, USA in the Mendocino National Forest. The U.S. Congress passed the California Wilderness Act of 1984 which created 23 new wilderness areas including Snow Mountain. It lies within the North Coast Range of mountains.
The Klamath Mountains ecoregion of Oregon and California lies inland and north of the Coast Range ecoregion, extending from the Umpqua River in the north to the Sacramento Valley in the south. It encompasses the highly dissected ridges, foothills, and valleys of the Klamath and Siskiyou Mountains. It corresponds to the Level III ecoregion designated by the Environmental Protection Agency and to the Klamath-Siskiyou forests ecoregion designated by the World Wide Fund for Nature.
The Bucks Lake Wilderness is a 23,958-acre (97.0 km2) wilderness area located in the Plumas National Forest section of the Sierra Nevada, in northeastern California, United States.
The Yolla Bolly–Middle Eel Wilderness is a federally designated wilderness area in the Yolla Bolly Range of the southern Klamath Mountains and the Inner Northern California Coast Ranges, in Northern California.
The Mount Shasta Wilderness is a 38,200-acre (155 km2) federally designated wilderness area located 5 miles (8.0 km) east of Mount Shasta City in northern California. The US Congress passed the 1984 California Wilderness Act that set aside the Mount Shasta Wilderness. The US Forest Service is the managing agency as the wilderness is within the Shasta-Trinity National Forest. The area is named for and is dominated by the Mount Shasta volcano which reaches a traditionally quoted height of 14,162 feet (4,317 m) above sea level, but official sources give values ranging from 14,104 feet (4,299 m) from one USGS project, to 14,179 feet (4,322 m) via the NOAA. Mount Shasta is one of only two peaks in the state over 14,000 feet (4,300 m) outside the Sierra Nevada Mountain Range. The other summit is White Mountain Peak in the Great Basin of east-central California.
The Castle Crags Wilderness is a 12,232-acre (49.50 km2) wilderness area in the Castle Crags rock formations of the Trinity Mountains, and within the Shasta-Trinity National Forest, in northwestern California. It is located in Siskiyou County and Shasta County, 40 miles (64 km) north of Redding and south of Mount Shasta City.
The Marble Mountain Wilderness is a 241,744-acre (978.30 km2) wilderness area located 60 miles (97 km) southwest of Yreka, California, in the United States. It is managed by the United States Forest Service and is within the Klamath National Forest in Siskiyou County. The land was first set aside in April 1931 as the Marble Mountain Primitive Area, which comprised 234,957 acres (950.84 km2). It was one of four areas to gain primitive status under the Forest Service's L-20 regulations that year. In 1964, it became a federally designated wilderness area when the U.S. Congress passed the Wilderness Act.
The Russian Wilderness is a wilderness area of 12,000 acres (49 km2) located approximately 65 miles (105 km) northeast of Eureka in northern California. It is within the Klamath National Forest in Siskiyou County and is managed by the US Forest Service. It was added to the National Wilderness Preservation System when the US Congress passed the California Wilderness Act of 1984.
The Bigfoot Trail is an unofficial U.S. long-distance hiking trail in northern California. The Bigfoot Trail was originally proposed by Michael Kauffmann in 2009 as a suggested route to navigate the Klamath Mountains from south to north as well as a long-trail to introduce nature lovers to the biodiversity of the Klamath Mountains region. The trail begins in the Yolla Bolly-Middle Eel Wilderness and ends in Redwood National Park at the Pacific Ocean near Crescent City, California. A major focus along the trail is conifer diversity, passing 32 species in 360 miles (580 km). The route crosses six wilderness areas, one National Park, and one State Park. Northwest California's Klamath Mountains foster one of the most diverse temperate coniferous forests on Earth, and this route is intended to be a celebration of that biodiversity.
Preston Peak, is a dominant feature of the Siskiyou Wilderness in the Klamath National Forest in northern California, U.S. Many peaks in the wilderness rise to over 6,000 feet (1,800 m) but none come to within 500 feet (150 m) of approaching the height of Preston Peak. From the summit on a clear day, the Pacific Ocean is visible along with peaks in the Klamath Mountains and Cascade Range.
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