Pennsylvania (/ˌpɛnsɪlˈveɪniə/ (listen) PEN-səl-VAY-nee-ə; Pennsylvania German: Pennsilfaani), officially the Commonwealth of Pennsylvania, is a U.S. state spanning the Mid-Atlantic, Northeastern, and Appalachian regions of the United States. It borders Delaware…

Oregon (/ˈɒrɪɡən/ (listen))is a state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon’s northern boundary with Washington, while the Snake River…

Oklahoma (/ˌoʊkləˈhoʊmə/ (listen); Choctaw: Oklahumma) is a state in the South Central region of the United States, bordered by Texas on the south and west, Kansas on the north, Missouri…