What is the Siskiyou Crest?

The Siskiyou Crest is a rugged, remote and spectacularly diverse mountain range straddling the border of northwestern California and southwestern Oregon. 

Little known, but incredibly wild and beautiful, the Siskiyou Crest is the only mountain range running primarily east to west in the Pacific Northwest, connecting the volcanic Cascade Mountains to the Coast Range. This vital habitat connectivity corridor extends from the sagebrush clearings and quaking aspen groves near Mt. Ashland to the fog drenched redwoods of the Smith River. The Siskiyou Crest is the axis for biodiversity on the West Coast and home to some of the most diverse conifer forests in the world.

The Siskiyou Crest A subrange of the Klamath Mountains

A Map of the Siskiyou Crest Region

The Siskiyou Crest is a subrange in the Klamath-Siskiyou Mountains of southwest Oregon and northwest California.

View from Tanner Peak

The high country of the Siskiyou Crest is also the headwaters of many clear flowing rivers and streams, including the Applegate and Illinois Rivers, both major tributaries of southwestern Oregon’s famous Rogue River, the mighty Klamath River, which marks the rugged southern boundary of the Siskiyou Crest region, and the lush forests of the Smith River that drain the Siskiyou Crest’s western flank. These rivers support important fisheries, sustain deep, diverse forests, spectacular woodlands, recreational opportunities and rural communities that could benefit from increased habitat protection.  

Part of the larger Klamath-Siskiyou Ecoregion, the area also contains one of the largest concentrations of wildland habitat remaining in the West, more Wild and Scenic Rivers than anywhere else in the continental United States, extremely high levels of biodiversity, and some of the most ancient and unique geologic diversity on the West Coast.

Get Involved

If you would like to get involved and/or make a contribution, please contact us.

© Siskiyou Crest Coalition. All rights reserved.
Site developed and hosted by Rogue Web Works, LLC.
"Foliage herb" icon by Alice Noir, "migration"icon by Marz Gallery, "forest" icon by Nesdon Booth, "Mountain" icon by Icons Cart, and "Green economy" icon by Attilio Baghino from Noun Project.