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,
Overfield Township, Wyoming County, Pennsylvania Overfield Township, Wyoming County, Pennsylvania Overfield Township is a township in Wyoming County, Pennsylvania, United States. The population was 1,666 at the 2010 census. Lake Winola is located in Overfield Township. According to the United States Census Bureau, the township has a total area of 10.2 square miles (26.4 km²), of which, 9.9 square miles (25.6 km²) of it is land and 0.3 square miles (0.9 km²) of it (3.24%) is water. As of the census of 2000, there were 1,532 people, 612 households, and 438 families residing in the township. The population density was 155.1 people per square mile