This is the home of the Sioux, more precisely the Oglala Lakota Sioux, the tribe of Crazy Horse.

ECONOMIST: Indian reservations

Regis Mohawk, Tlingit, Oglala Sioux, Standing Rock Sioux, and the Three Affiliated Tribes of the Mandan, Hidatsa, and Arikara Nation.

WHITEHOUSE: The White House

I'm president of the Oglala Sioux Tribe from the state of South Dakota, and a member of the Great Plains Tribal Chairman's Association.

WHITEHOUSE: President Obama Opens Tribal Nations Conference

The presence of a clinic that offered abortions on the reservation might well have been challenged legally, without an outright ban: the Oglala Sioux tribal code says, rather ambiguously, that a child subsequently born is protected from conception onwards.

ECONOMIST: Abortion law in South Dakota