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 Elk River is in southwestern Oregon in the United States. About 29 miles (47 km) long, the river drains a remote 92-square-mile (240 km2) area of the Coast Range into the Pacific Ocean.
The Hells Canyon Wilderness is a wilderness area in the western United States, in Idaho and Oregon. Created 48 years ago in 1975, the Wilderness is managed by both the U.S. Bureau of Land Management and the U.S. Forest Service and contains some of the most spectacular sections of the Snake River as it winds its way through Hells Canyon, North America's deepest river gorge and one of the deepest gorges on Earth. The Oregon Wilderness Act of 1984 added additional acreage and currently the area protects a total area of 217,927 acres (88,192 ha). It lies entirely within the Hells Canyon National Recreation Area except for a small 946-acre (383 ha) plot in southeastern Wallowa County, Oregon which is administered by the Bureau of Land Management. The area that is administered by the Forest Service consists of portions of the Wallowa, Nez Perce, Payette, and Whitman National Forests.
The Irish Wilderness is a 16,227-acre (66 km2) wilderness area in the U.S. State of Missouri. The U.S. Congress designated it a wilderness in 1984. The Irish Wilderness is located within the Eleven Point Ranger District of the Mark Twain National Forest, 10 miles (16 km) northeast of Alton, Missouri. The Irish Wilderness is one of eight wilderness areas protected and preserved in Missouri.
Drift Creek Wilderness is a 5,798-acre (2,346 ha) wilderness area in the Siuslaw National Forest on the Oregon Coast. It was created in 1984, along with two other small wilderness areas in the forest - Cummins Creek Wilderness and Rock Creek Wilderness. The elevation of Drift Creek ranges from 150 to 1,500 feet, and is characterized by long steep slopes with broken and uneven terrain. Drift Creek was named for the accumulations of driftwood on its banks.
The Opal Creek Wilderness is a wilderness area located in the Willamette National Forest in the U.S. state of Oregon, on the border of the Mount Hood National Forest. It has the largest uncut watershed in Oregon.
The Cummins Creek Wilderness is a 9,300-acre (3,800 ha) wilderness area in the Siuslaw National Forest within the Oregon Coast. It is one of three wilderness areas created in the Siuslaw in 1984, along with Drift Creek and Rock Creek. It is "dedicated to preserve in a wilderness state, the last remaining virgin stands of Sitka spruce, western hemlock and Douglas-fir, in Oregon's coast lands." Cummins Creek and nearby Cummins Ridge are named for F.L. Cummins, an early homesteader.
The Rock Creek Wilderness is a wilderness area comprising 7,486 acres (3,029 ha) within the Siuslaw National Forest on the Oregon Coast. It was created in 1984, along with the Drift Creek Wilderness and Cummins Creek Wilderness. The Rock Creek Wilderness has "no developed trails or trailheads."
The Boulder Creek Wilderness is a wilderness area located in the Umpqua National Forest in the southern Cascade Range of Oregon, United States. It was designated by the United States Congress in 1984 and comprises 19,100 acres (7,729 ha).
The Salmon–Huckleberry Wilderness is a wilderness area located on the southern side of Mount Hood in the northwestern Cascades of Oregon, in the United States. It lies within the Mount Hood National Forest and comprises 62,061 acres (25,115 ha) of land. The United States Congress designated the area Wilderness in 1984.
The Central Oregon Coast Range is the middle section of the Oregon Coast Range, in the Pacific Coast Ranges physiographic region, and located in the west-central portion of the state of Oregon, United States roughly between the Salmon River and the Umpqua River and the Willamette Valley and the Pacific Ocean. This approximately 90-mile (140 km) long mountain range contains mountains as high as 4,097 feet for Marys Peak. Portions of the range are inside the Siuslaw National Forest and three wilderness areas exist as well: Drift Creek Wilderness, Cummins Creek Wilderness and Rock Creek Wilderness.
The Oregon Coast Range, often called simply the Coast Range and sometimes the Pacific Coast Range, is a mountain range, in the Pacific Coast Ranges physiographic region, in the U.S. state of Oregon along the Pacific Ocean. This north-south running range extends over 200 miles (320 km) from the Columbia River in the north on the border of Oregon and Washington, south to the middle fork of the Coquille River. It is 30 to 60 miles wide and averages around 1,500 feet (460 m) in elevation above sea level. The coast range has three main sections, a Northern, Central, and Southern.
The Siuslaw National Forest is a national forest in western Oregon in the United States. Established in 1908, the Siuslaw is made up of a wide variety of ecosystems, ranging from coastal forests to sand dunes.
The Coast Range ecoregion is a Level III ecoregion designated by the Environmental Protection Agency (EPA) in the U.S. states of Washington, Oregon, and California. It stretches along the Pacific Coast from the tip of the Olympic Peninsula in the north to the San Francisco Bay in the south, including Grays Harbor, Willapa Bay, and the Long Beach Peninsula in Washington, the entire length of the Oregon Coast, and the Northern California Coast. Named for the Coast Range mountains, it encompasses the lower elevations of the Olympic Mountains, the Oregon Coast Range, the Californian North Coast Ranges, and surrounding lowlands.
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 Santa Rosa Wilderness is a 72,259-acre (292.42 km2) wilderness area in Southern California, in the Santa Rosa Mountains of Riverside and San Diego counties, California. It is in the Colorado Desert section of the Sonoran Desert, above the Coachella Valley and Lower Colorado River Valley regions in a Peninsular Range, between La Quinta to the north and Anza Borrego Desert State Park to the south. The United States Congress established the wilderness in 1984 with the passage of the California Wilderness Act, managed by both the US Forest Service and the Bureau of Land Management. In 2009, the Omnibus Public Land Management Act was signed into law which added more than 2,000 acres (8.1 km2). Most of the Santa Rosa Wilderness is within the Santa Rosa and San Jacinto Mountains National Monument.
The James River Face Wilderness is an 8,907-acre area located near Natural Bridge, Virginia that is protected by the Eastern Wilderness Act of Congress to maintain its present, natural condition. As part of the National Wilderness Preservation System, it helps to preserve a variety of natural life forms and contributes to a diversity of plant and animal gene pools. Over half of the ecosystems in the United States exist within designated wilderness.
Drift Creek Falls is a waterfall formed west of Valley of the Giants, east side of the city of Lincoln City in Lincoln County, Oregon. Access to Drift Creek Falls is located along a trail constructed by the Forest Service in the 1990s and features a 240 foot long suspension bridge crossing Drift Creek.
The protected areas of the Sierra Nevada, a major mountain range located in the U.S. states of California and Nevada, are numerous and highly diverse. Like the mountain range itself, these areas span hundreds of miles along the length of the range, and over 14,000 feet of elevation from the lowest foothills to the summit of Mount Whitney.
