Frequently Asked Questions

Smoking is not allowed anywhere on the Reserve.
Open fires are limited to the barbecues
No Pets are permitted on the Reserve.
You are responsible for cleaning up after yourselves.
Please conserve electricity by turning off all lights when not in use, especially the bathrooms.
Please minimize use of water as it takes electricity to pump the water.
Except when unloading, all vehicles are to be parked in the lower parking area (see map).
Both Reserve gates are to remain locked at all times.

The James San Jacinto Mountains and Oasis de los Osos Reserves are a part of the University of California’s Natural Reserve System’s 39 protected biological field stations that are dedicated to supporting research, teaching and public service. The James and los Osos represent two distinctly different ecosystems within the San Jacinto Mountains located in southern California.

The James Reserve is part of a large forested “sky island” located on the western side of Mt. San Jacinto mountains, a range that is surrounded by the Colorado Desert. In contrast, the Oasis de los Osos Reserve is located on the lower north side of the San Jacintos and lies within the Colorado Desert with the dominant vegetation being desert shrubs and grasses.

The station facilities are located at the James Reserve and have the capacity to house over 70 people in new modern dorms and a classroom, all equipped with cooking faculties, bathroom facilities, and wireless internet.

Frequently Asked Questions

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