This dataset delineates the geospatial boundaries (as represented by the managing agencies) of marine and terrestrial protected areas in the continental United States, Alaska, Hawaii, Puerto Rico, Guam, American Samoa, the Virgin Islands, and the Commonwealth of the Northern Mariana Islands. The feature class contains protected areas located in U.S. state and federal waters as well as those located within 20 miles of coastal submerged lands including hydrologically related rivers and bays to ensure this dataset is as detailed and complete as possible.