Shenandoah National Park a result of differential erosion during the Cenozoic, although some post-Paleozoic tectonic activity occurred in the region. Legislation to create a national park in the Appalachian mountains was first introduced by new Virginia congressman Henry D. Flood in 1901, but despite the support of President Theodore Roosevelt, failed to pass. The first national park was Yellowstone, in Wyoming, Montana, and Idaho. It was signed into law in 1872. Yosemite National Park was created in 1890. When Congress created the National Park Service (NPS) in 1916, additional parks had maintained the western pattern (Crater Lake in 1902, Wind Cave in 1903,
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