Wyoming between the Sierra Madre Mountains and the Snowy Range near Grand Encampment. Once government-sponsored expeditions to the Yellowstone country began, reports by Colter and Bridger, previously believed to be apocryphal, were found to be true. This led to the creation of Yellowstone National Park, which became the world's first national park in 1872. Nearly all of Yellowstone National Park lies within the far northwestern borders of Wyoming. On December 10, 1869, territorial Governor John Allen Campbell extended the right to vote to women, making Wyoming the first territory and then United States state to grant suffrage to women. In addition,
Lance Creek, Wyoming Lance Creek, Wyoming Lance Creek is a census-designated place (CDP) in Niobrara County, Wyoming, United States. The population was 43 at the 2010 census. Lance Creek is the namesake of the Lance Formation, a rock formation from the Late Cretaceous that has yielded fossils from a diverse number of species. Lance Creek is located at (43.045452, -104.656628). According to the United States Census Bureau, the CDP has a total area of 42.0 square miles (108.8 km²), of which 42.0 square miles (108.8 km²) land and 0.026% is water. At the 2000 census, there were 51 people, 21 households and 17