Skip Navigation


  • Pronghorn_218x116

    Sonoran Pronghorn

    The Sonoran pronghorn is the fastest land mammal in North America and can run at speeds up to 60 miles per hour.

    Sonoran Pronghorn

  • Rattlesnake_218x116

    Native Reptiles

    At least 21 types of snakes call the refuge home, including 6 rattlesnake species. They are an important part of the desert community.

  • SunsetCacti_218x116

    Exciting Night Life

    When the sun sets and the desert cools, a host of refuge animals stir, including ringtail cats, pocket mice and 11 species of bats.

  • HornedLizard_218x116

    Cryptic Critters

    Light-colored fur helps mammals reflect heat rather than soak it in. The scales of lizards serve the same purpose.

  • DesertTortoise_218x116

    Going Underground

    Many desert animals burrow, including tortoise. They burrow down (sometimes up to many feet) to avoid the summer heat and winter cold.


Protecting Fawns


Due to the success of recovery efforts, pronghorn numbers have recently increased to historic average numbers. To protect the young Sonoran pronghorn, much of the refuge has been closed since 2003 during fawning season -- from mid-March to mid-July -- but the closure may be suspended beginning in 2014. The purpose of the temporary closure has been to minimize disturbance to herds containing fawns. If spooked, the adults will often run several miles and use up valuable energy they need to maintain themselves and their fawns. If their nutritional requirements are not met, this can result in the loss of fawns.

During Fawning Season

Draft Compatibility Report

Draft Compatibility Report Available for Review

U.S. Customs and Border Protection (CBP) proposes to replace an existing radio repeater co-located with Fish and Wildlife Service communications equipment on Buck Peak with updated land mobile radio (LMR) tactical communications (TacCom) equipment and to install up to two new repeaters at Granite Mountain and Christmas Pass. All three sites are located in designated wilderness within the Cabeza Prieta National Wildlife Refuge (CPNWR). The CBP, at CPNWR’s request, has designed sufficient capacity in their systems proposed at Buck Peak and Christmas Pass to allow for the installation and operation of CPNWR equipment. If you have questions or comments contact Sid Slone in writing, person, or by telephone. He can be contacted at Cabeza Prieta National Wildlife Refuge at 1611 N. 2nd Ave, Ajo, AZ 85321 between 8:00 and 3:30 pm Monday through Friday or via phone at 520-387-6483. Comments must be received no later than close of business on August 12, 2013.

Click here to view the compatibility determination.

About the NWRS

National Wildlife Refuge System


The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.

Learn more about the NWRS  

Follow NWRS Online



Page Photo Credits — All photos courtesy of USFWS unless otherwise noted., Lesser long-nosed bats / USFWS, Horned Lizard / Johnida Dockens ©, Pronghorn / Steve Hillebrand ©, Black-tailed Rattlesnake / Gary M Stoltz ©
Last Updated: Mar 12, 2014
Return to main navigation