From
Wikipedia:
The Elephant Sanctuary in Hohenwald, Tennessee, is the nation's largest natural-habitat refuge developed specifically to meet the needs of endangered elephants. It was founded in 1995 as the United States' first elephant refuge, it is a non-profit organization, licensed by the U.S. Department of Agriculture (USDA) and the Tennessee Wildlife Resources Agency, designed specifically for old, sick or needy elephants who have been retired from zoos and circuses. These female elephants neither breed nor do they perform or entertain the public. Utilizing more than 2700 acres, the Sanctuary provides three separate and protected, natural habitat environments for Asian and African elephants.