What Indigenous territories am I in?

Oklahoma is a state in the South Central region of the United States. It borders Texas to the south and west, Kansas to the north, Missouri to the northeast, Arkansas to the east, New Mexico to the west, and Colorado to the northwest. Partially in the western extreme of the Upland South, it is the 20th-most extensive and the 28th-most populous of the 50 United States. Its residents are known as Oklahomans and its capital and largest city is Oklahoma City. The state's name is derived from the Choctaw words okla, 'people' and humma, which translates as 'red'. Oklahoma is also known informally by its nickname, "The Sooner State", in reference to the Sooners, American settlers who staked their claims in formerly American Indian-owned lands until the Indian Appropriations Act of 1889 authorized the Land Rush of 1889 opening the land to settlement.

Indigenous rights are those rights that exist in recognition of the specific condition of indigenous peoples. This includes not only the most basic human rights of physical survival and integrity, but also the rights over their land, language, religion, and other elements of cultural heritage that are a part of their existence and identity as a people. This can be used as an expression for advocacy of social organizations, or form a part of the national law in establishing the relation between a government and the right of self-determination among its indigenous people, or in international law as a protection against violation of indigenous rights by actions of governments or groups of private interests.