Reserve News:

Quail Ridge Natural Reserve is one of 35 Natural Reserves administered by the University of California Natural Reserve System (NRS). Established in 1991 with 242 ha (600 acres) of land, Quail Ridge has since been expanded to over 784 ha (1937 acres). Quail Ridge lies on a peninsula formed by the flooding of Berryessa Valley and the creation of the Berryessa Reservoir, and perhaps due to its isolation it retains many elements of the native flora of this region.

Geologically the Reserve is fairly uniform, but soil heterogeneity has promoted a patchwork of vegetation types. The most widespread plant communities are native and non-native grasslands, chamise chaparral, and oak woodlands, and there are riparian woodlands along the valley bottoms. In addition to a diverse flora the reserve fauna includes more than 18 mammals (nearly 60 species potentially occur here), 130 birds, 20 reptiles and amphibians, and over 500 moths and butterflies. Many taxa remain to be documented at Quail Ridge.

Quail Ridge Reserve is a patchwork of parcels under varied ownership, including the UC Regents, the Quail Ridge Wilderness Conservancy (QRWC), the US Bureau of Reclamation, the US Bureau of Land Management, and the California Department of Fish and Game. The Reserve is managed by UC Davis NRS, and the Napa Valley Land Trust holds conservation easements on many of the properties. The peninsula also includes privately owned parcels that are not part of the Reserve.

We strongly encourage the use of Quail Ridge Reserve by educational and research users. Potential users should read the Vistor Information portion of this site and then contact the Reserve manager. ALL USERS MUST CONTACT THE RESERVE MANAGER BEFORE VISITING THE RESERVE.

Access by the public to the Quail Ridge peninsula is limited to guided hikes and boat trips sponsored by QRWC. Please call (530) 758-1387 for more information.

For Research or Class information contact:
Shane Waddell,, 530-754-7108

Photo Credits: Title, California Quail (Mike Benard)

This page last updated: May 15, 2015  

Contact: Shane Waddell
John Muir Institute of the Environment
107 The Barn, University of California, Davis, CA 95616
Phone: 530-754-7108; email:

Site designed and maintained by Shane Waddell
Website Technical Questions: