Glenham, SD

ZIP code 57631 is located in Eagle Butte, South Dakota. This area is home to the Cheyenne River Sioux Reservation, where the Cheyenne River runs through. Important landmarks include the Cheyenne River Reservation, Cheyenne River Dam, and the Cheyenne River Sioux Tribal Council Headquarters. The community is rich in Native American culture and history, offering visitors a glimpse into the traditional way of life of the Cheyenne River Sioux Tribe.