The James San Jacinto Mountains and Oasis de los Osos Reserves are part of the University of California’s Natural Reserve System (UCNRS). With over 750,000 acres and 39 protected biological field stations that are dedicated “to contribute to the understanding and wise stewardship of the Earth and its natural systems by supporting university-level teaching, research, and public service“, the UCNRS is the world’s largest reserve system managed by a university. The James San Jacinto Mountains and Oasis de los Osos Reserves are administered by the UC Riverside campus.

Research

Teaching

Outreach

Outreach

Any gifts in excess of the repair costs will be used for other projects, maintenance, and operations at the James Reserve.

Photos

James reserve is interesting areas that are homes to a rich diversity of species that have been extensively studied. Explore the amphibian, birds, mammals, and reptiles species.

Live feed cameras

Live feed view of the bird feeders at the James Reserve. The Reserve has a high diversity of bird life and multiple feeders are in place. Due to recent bear activity the feeders and the cameras have been temporarily discontinued.
Safety and Conduct at the Reserves
Frequently Asked Questions
Breaking News from the James Reserve!