Park & Refuge Maps	Information Links Class I Area Locations Air Atlas GIS Map Products Class I Receptors
The National Park Service and the Fish and Wildlife Service (FWS) have responsibility for managing approximately 400 park units and 500 refuges, respectively. The maps available below primarily identify the lands which have been designated as Class I by the Clean Air Act. For completeness, maps of the Forest Service (FS) and Native American Class I areas are also included.
The National Park Service provides access to national park boundary files and other GIS resources through its Geography and Mapping Technologies web site. However, the ArcView Shapefiles that were used to create the Class I maps are available below. This data is provided for convenience but it is not guaranteed for accuracy, reliability or suitability for your individual application.

These maps and lists include links to pages that describe ongoing park air resource activities as well as their home pages located on ParkNet. Some of the pages are in Adobe PDF format and require the free Adobe Reader software to view.

• Alphabetical listing of all Class I national parks
• Air Resources Information System (ARIS)
• 11" x 8.5" map of Class I national parks in Adobe PDF format (126 KB)
• Map of the U.S. with all NPS managed lands identified
• NPS Class I national parks boundary file in ArcView Shapefile format (742 KB, zipped)

• Alphabetical listing of all Class I refuges
• FWS Class I refuge specific information links
• 11" x 8.5" map of Class I refuges in Adobe PDF format (126 KB)
• 11" x 8.5" map of Class I refuges rated by pollution threat in Adobe PDF format (94 KB)
• FWS Class I refuges boundary file in ArcView Shapefile format (61KB, zipped)

• Alphabetical listing of all Class I wilderness areas
• Photos of FS Class I wilderness areas
• 11" x 8.5" map of Class I wilderness areas in Adobe PDF format (103 KB)
• FS Class I wilderness areas boundary file in ArcView Shapefile format (216 KB, zipped)

• Alphabetical listing of all Class I Native American Indian lands
• 11" x 8.5" map of Class I Native American Indian lands in Adobe PDF format (75 KB)

• Map of all NPS, FWS, and FS Class I Areas in JPG format (424 KB)
• 11" x 8.5" map of Class I NPS national parks in Adobe PDF format (126 KB)
• 11" x 8.5" map of Class I FWS refuges in Adobe PDF format (126 KB)
• 11" x 8.5" map of Class I FS wilderness areas in Adobe PDF format (103 KB)
• 11" x 8.5" map of Class I Native American Indian lands in Adobe PDF format (75 KB)