{ "culture": "en-US", "name": "", "guid": "", "catalogPath": "", "snippet": "", "description": "Mandatory Federal Class I areas (NPS, USFS, FWS and BIA) as defined by the Clean Air Act of 1977. Class I areas consist of national parks larger than 6,000 acres and national wilderness areas larger than 5,000 acres, in existence on August 7, 1977.", "summary": "", "title": "Class I Areas", "tags": [], "type": "", "typeKeywords": [], "thumbnail": "", "url": "", "minScale": 0, "maxScale": 0, "spatialReference": "", "accessInformation": "", "licenseInfo": "" }