What unique geographic feature is commonly found in eastern Oklahoma?

The Ozark Mountains are a unique geographic feature commonly found in eastern Oklahoma, particularly in an area known as the Ozark Plateau. This region is characterized by its distinctive hills, rugged terrain, and a diverse ecosystem, making it an important natural area in the state. The Ozarks extend into parts of Missouri, Arkansas, and Kansas, but the Oklahoma section is notable for its scenic beauty, with features such as deep valleys, streams, and unique rock formations.

In contrast, the Great Plains primarily cover the western part of Oklahoma and are known for their flat terrain and grasslands. The Rocky Mountains are located much further west, spanning parts of Colorado, New Mexico, Wyoming, and Montana, and do not extend into Oklahoma. The Sand Dunes, while present in some areas of the United States, are not a primary feature of eastern Oklahoma. Hence, the recognition of the Ozark Mountains reflects the distinct geological and ecological characteristics that define that part of the state.