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.
These mountains are not the highest of the Klamath Mountains, but because of the relief so close to the Pacific Ocean, the peaks receive significant precipitation from the ocean, including wintertime snow on the peaks. Western canyons can receive over 100 inches (2,500 mm) of rain in some winters and are densely forested, while eastern areas are more arid.[5] The greatly varied topography and climate contribute to high biodiversity, and the Siskiyous are noted for a number of endemic species.
^"Siskiyou Mountains". Peakbagger.com. Retrieved August 26, 2015.
^"Ashland Pk Reset". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved July 1, 2021.
^"Mount Ashland". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. November 28, 1980. Retrieved July 1, 2021.
^ abc"Siskiyou Mountains". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. January 19, 1981. Retrieved August 26, 2015.
^Kauffmann, Michael. "Climate". Conifer Country. Retrieved May 6, 2013.
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SiskiyouMountains of southern Oregon. It was named for the city of Ashland, located 8.6 miles (14 km) north of the mountain. The SiskiyouMountains are...
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that features trees, shrubs and herbs from eight zones of the Siskiyou and Cascade mountains in Southern Oregon. It is located behind the historic Beekman...
pluvial lakes in the northern Great Basin. Pollen record from the SiskiyouMountains suggests a lag in timing of the Younger Dryas, indicating a greater...
referred to as Donner Summit and the highest point on Interstate 5 is SiskiyouMountain Summit. This can lead to confusion as to whether a labeled "summit"...
Cowden (born March 19, 1974), disappeared from their campground in the SiskiyouMountains near Copper, Oregon, United States, on September 1, 1974. Seven months...
includes the Rocky Mountains, the Columbia Mountains, the Interior Mountains, the Interior Plateau, the Sierra Nevada, the Great Basin mountain ranges, and other...
temperate forests and rocky areas. The SiskiyouMountains salamander (Plethodon stormi), also called the SiskiyouMountain salamander, exists only in isolated...
follows the Klamath River into the SiskiyouMountains, where it crosses into Oregon. I-5 enters Oregon near Siskiyou Summit, which sits at 4,310 feet (1...
of mountains of Oregon Lists of Oregon-related topics List of mountain ranges of California List of mountain ranges of Nevada "Aldrich Mountains". Geographic...
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leachiana, commonly referred to as Siskiyou kalmiopsis, is a rare flowering plant endemic to the SiskiyouMountains of southwest Oregon, where it is specially...
isolated enclave west of the Cascade Range along the north side of the SiskiyouMountains. It is separated from the nearby coast by a high section of the Southern...
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