What is the land area of Oklahoma geographically divided by?

Oklahoma has a total land area of approximately 69,899 square miles. Geographically, it is divided into several regions, including the Great Plains, the Cross Timbers, and the Ozark Plateau. The state features diverse landscapes, such as prairies, forests, and mountains, which influence its climate and ecology. Additionally, Oklahoma is known for its rich Native American heritage and numerous tribal nations.