“The Protected Areas Database of the United States (PAD-US) was recently highlighted on the U.S. Geological Survey website. Mapping Public Lands in the United States describes this growing database containing more than three billion public land and marine acres managed by nearly 15,100 agencies and nongovernmental organizations,  and covering 200,000 separate parks and protected areas. PAD-US is a product of Core Science Analytics, Synthesis, and Library (CSAS&L) in the USGS Core Science Systems Mission Area. Explore the PAD-US Map Viewer.”