Siskiyous

The Siskiyous, or the Siskiyou Mountains, are a mountain range in northern California and southern Oregon, forming part of the Klamath Mountains. The range includes rugged ridges, deep canyons, and high plateaus, and is characterized by complex geology with a mix of rock types.

Ecology: The Siskiyous are a biodiversity hotspot where northern and southern flora and fauna meet. The range supports extensive old-growth conifer forests, including ponderosa pine, Douglas fir, white fir, and red fir, along with mixed hardwood stands at lower elevations. Its varied climates and topography provide habitat for many species of mammals, birds, and amphibians, and host several endemic plant communities.

History and culture: Indigenous peoples, including the Karuk and other tribes of the Klamath and Shasta–Trinity regions, have long inhabited the Siskiyous. The name Siskiyou derives from Indigenous language usage in the area. In the 19th century, exploration, mining, and logging brought changes, and transportation routes were developed through the mountains.

Protection and use: Today the range lies within several national forests and protected areas, including the Cascade-Siskiyou National Monument. Recreation and timber are important to the region; Mount Ashland and other parts offer hiking, skiing, and scenic drives, while forestry remains an economic activity.