Nearly 250,000 acres of critical habitat for bighorn sheep and desert tortoise are now protected within the East Mojave National Scenic Area thanks to support from the Richard King Mellon Foundation and a cooperative effort involving the Bureau of Land Management, California Cattle Growers Association, National Park Service, private landowners and The Conservation Fund. By purchasing and then retiring grazing permits from willing landowners, the Fund and its partners are working to implement comprehensive management plans across the Mojave Desert and the California Desert Conservation Area.