Published By U.S. Environmental Protection Agency
Issued about 9 years ago
US
beta
Summary
Description
This downloadable package contains the following layers: Mandatory Class 1 Federal Area polygons in the United States. Included in this package are a file geodatabase, Esri ArcMap map document and an XML file of this metadata record. This dataset was developed by EPA's Office of Air Quality Planning and Standards (OAQPS) based on features originating from several data sources, including USEPA, USFS, USFWS, NPS and BIA.