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,
Ralston, Wyoming $29,091 versus $28,333 for females. The per capita income for the CDP was $22,320. None of the population or families were below the poverty line. Ralston, Wyoming Ralston is a census-designated place (CDP) in Park County, Wyoming, United States. The population was 280 at the 2010 census. Ralston is located at (44.714544, -108.875598). According to the United States Census Bureau, the CDP has a total area of 5.6 square miles (14.6 km²), all of it land. Ralston post office was established March 16, 1907. As of the census of 2000, there were 233 people, 96 households, and 74 families residing