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,
Orin, Wyoming 26/U.S. Route 87 and U.S. Route 18/U.S. Route 20. Orin is about southeast of Douglas. A BNSF Railway line runs through the community. According to the United States Census Bureau, the CDP has a total area of 1.1 square miles (2.9 km²), 1.0 square miles (2.6 km²) of it land and 0.1 square miles (0.26 km²) (9.1%) of it water. Orin, Wyoming Orin is a village, and the locus of a same-named census-designated place (CDP), in Converse County, Wyoming, United States. The population was 46 at the 2010 census. A post office called Orin Junction was established in 1891, the