The term 'Cowboy State' is a nickname for the state of Wyoming, which has seven letters. Wyoming is located in the western United States and is known for its wide open spaces and cowboy culture. It is home to Yellowstone National Park, the first national park in the United States, and is also known for its mountain ranges, including the Rocky Mountains. Wyoming is also known for its ranching and rodeo traditions, making it an ideal destination for those looking to experience the Wild West.