Back from the Collapse is about the ecological restoration of North America's Great Plains, a region that has been called America's Serengeti in recognition of its historically extraordinary abundance of wildlife. Since Euro-American colonization, however, populations of at least twenty-four species of Great Plains wildlife have collapsed--from pallid sturgeon and burrowing owls to all major mammals, including bison and grizzly bears. In response to this incalculable loss, Curtis H. Freese and other conservationists founded American Prairie, a nonprofit organization with the mission of supporting the region's native wildlife by establishing a 3.2-million-acre reserve on the plains of eastern Montana, one of the most intact and highest priority areas for biodiversity conservation in the Great Plains.