Related Clues:
- It's south of S.D.
- It's N. of 136 Across
- Home of the Wichita Mts.
- Bad Lands state: Abbr.
- Ozark Mountains st.
- Corn Belt st.
- Where the Platte R. flows
- Bismarck's locale: Abbr.
- Theo. Roosevelt Natl. Park locale
- Okla. rival
- The Missouri R. forms its eastern border
- Homestead Natl. Monument locale
- Tulsa locale, briefly
- Neighbor of Tex.
- Buzzard's beak, e.g.