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Find out more from the Center for Biological Diversity:
Sonoran Desert
Arizona Daily Star, March 8, 2011

Road closures near Ajo to protect pronghorns
By The Associated Press

Road closures on public lands near Ajo will begin next week in a bid to protect the endangered Sonoran pronghorn population during fawning season.

The closures will run from March 15 through July 15 and will affect land at the Organ Pipe Cactus National Monument, Barry M. Goldwater Range and Cabeza Prieta National Wildfire Refuge.

The closures are aimed at minimizing disturbances to female pronghorns and their offspring during the spring and early summer when fawns are most vulnerable.

Sonoran pronghorns used to roam freely across the U.S.-Mexico border in the Sonoran desert in search of feed and water.

Pressure from ranching and development, and roads cut them off from much of their normal migratory range.

Copyright 2011 Arizona Daily Star.

Photo © Paul S. Hamilton