The San Diego National Wildlife Refuge is more than a haven for wildlife, it’s also a natural escape for nearby communities. Established in 1996, the refuge spans approximately 12,445 acres, stretching from the city of Jamul to neighborhoods in Spring Valley and eastern Chula Vista. It is part of the U.S. Fish and Wildlife Service’s contribution to the San Diego Multiple Species Conservation Program (MSCP), a regional effort to protect native habitats and species while supporting responsible development.
UPDATES
  • On October 2, Millar Ranch Road will be closed from 7 am to 3 pm for road maintenance. The Sweetwater Interp Loop parking lot will be open but upper Millar Ranch Road / Hidden Valley Parking lot will be closed. Access to Hidden Valley Trail will be impacted.
  • The hunt unit at San Diego NWR is OPEN  as of September 1, 2025.
  • Attention Hunters: Please be aware that government-contracted work is taking place near the hunt unit. For your safety and the safety of others, stay alert and hunt responsibly.

Visit Us

A Sanctuary for Nature and People
San Diego National Wildlife Refuge protects one of the last remaining stretches of open space in coastal Southern California, offering exceptional biological, cultural, and recreational value. This refuge is a sanctuary not only for native plants and animals but also for the surrounding communities.

Visitors can enjoy a variety of activities, including hiking, biking, birdwatching, and horseback riding. Wildlife enthusiasts may spot endangered species, capture stunning photographs, or join a guided tour led by a refuge ranger.

Location and Contact Information

      Our Species

      Wildlife and Habitat
      San Diego National Wildlife Refuge supports a wide variety of habitats and species. More than 14 species found here are listed as threatened or endangered, including several addressed in the San Diego Multiple Species Conservation Program (MSCP).

      Although a complete wildlife inventory has not yet been conducted for the entire refuge, numerous surveys have been completed in different areas over the years. Additional details about the wildlife found here can be found in the Comprehensive Conservation Plan. 

      Projects and Research

      Resource management include listed and sensitive species, habitat restoration and enhancement, and habitat and wildlife protection.