The Wind River Indian Appointment, in the west-central section of the U.S. state of Wyoming, is shared by two Native American people, the Eastern Shoshone as well as the Northern Arapaho. About 60 mi (97 km) eastern to west by 50 mi (80 km) north to south, the Indian appointment is situated in the Wind River Container, and also includes portions of the Wind River Range, Owl Creek Hills, and also Absaroka Range. The Wind River Indian Booking is the seventh-largest Indian appointment in the United States by area, and also the fifth-largest American Indian reservation by populace. The land area is approximately 2.2 million acres (3,438 sq mi; 8,903 km2), and the overall area (land and also water) is 3,532.01 square miles (9,147.9 km2). The reservation makes up just over one-third of Fremont County and over one-fifth of Hot Springs County.The 2000 demographics reported the populace of Fremont Region as 40,237. According to the 2010 census, just 26,490 people now live on the appointment, wi...