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Sierra Nevada Bioregion

One of four bioregions that converge on Tejon Ranch, the Sierra Nevada Bioregion represents much of the northeastern and interior mountainous portions of Tejon. Landscapes within this region range from mountain forests and mixed hardwood conifer woodlands, to alpine meadows, chaparral-covered foothills and valley grasslands. Expanding ecological research throughout this region remains a high priority, as the potential for catastrophic wildfire and other climate change-related disturbances threaten the rich biodiversity and abundant natural resources that occur here. 

The Conservancy was created as an independent nonprofit organization by the Tejon Ranch Conservation and Land Use Agreement, signed on June 17, 2008, by the Tejon Ranch Company, Audubon California, the Endangered Habitats League, Natural Resources Defense Council, Planning and Conservation League, and Sierra Club. 
 

A Special Thank You to Our Newest Supporters 

We extend our heartfelt thanks to our newest generous supporters, whose commitment is helping make the Conservancy’s programs and future initiatives possible: 

California Resources Corporation, The Leiter Family Foundation, Virginia and Alfred Harrell Foundation, Natural Resources Conservation Service (NRCS), U.S. Fish and Wildlife Service Partners for Fish and Wildlife Program

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© 2026 Tejon Ranch Conservancy

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