{"id":"fws-43662","slug":"fern-cave-national-wildlife-refuge","name":"Fern Cave National Wildlife Refuge","designation":"National Wildlife Refuge","category":"national-wildlife-refuge","categoryLabel":"National Wildlife Refuge","agency":{"code":"FWS","name":"U.S. Fish and Wildlife Service","department":"U.S. Department of the Interior","url":"https://www.fws.gov"},"managedBy":[{"code":"FWS","name":"U.S. Fish and Wildlife Service","department":"U.S. Department of the Interior","url":"https://www.fws.gov","unitCode":"FEC","designation":"National Wildlife Refuge","sourceId":"fws-43662"}],"states":["AL"],"stateNames":["Alabama"],"location":{"lat":34.6697,"lon":-86.3093},"bbox":[-86.3182,34.6605,-86.3019,34.6792],"acres":{"value":682,"kind":"approved-boundary-gis","source":"USFWS approved acquisition boundaries","note":"Area inside the approved acquisition boundary; land actually owned or managed by FWS can be smaller."},"firstProtected":null,"established":null,"administrations":[],"designationHistory":[],"summary":null,"summarySource":null,"guide":{},"trConnection":null,"trConnections":[],"trTypes":[],"links":{"official":"https://www.fws.gov/refuge/fern-cave","social":{},"recreationGov":null,"alltrails":null,"alltrailsExplore":"https://www.alltrails.com/explore?b_tl_lat=34.6792&b_tl_lng=-86.3182&b_br_lat=34.6605&b_br_lng=-86.3019","recreationGovSearch":"https://www.recreation.gov/search?q=Fern%20Cave%20National%20Wildlife%20Refuge","directions":"https://www.google.com/maps/dir/?api=1&destination=34.6697,-86.3093"},"images":[],"activities":[],"topics":[],"fees":[],"passes":[],"hours":[],"directions":null,"weatherInfo":null,"contacts":null,"visitorCenters":[],"campgrounds":[],"thingsToDo":[],"nearby":[{"slug":"sauta-cave-national-wildlife-refuge","km":17},{"slug":"paint-rock-river-national-wildlife-refuge","km":44},{"slug":"wheeler-national-wildlife-refuge","km":46},{"slug":"russell-cave-national-monument","km":56},{"slug":"little-river-canyon-national-preserve","km":69},{"slug":"chickamauga-and-chattanooga-national-military-park","km":98}],"hasBoundary":true,"boundarySource":{"name":"USFWS approved acquisition boundaries","url":"https://services.arcgis.com/QVENGdaPbd4LUkLV/arcgis/rest/services/FWSApproved_Authoritative/FeatureServer/0"},"sources":[{"name":"USFWS approved acquisition boundaries","url":"https://services.arcgis.com/QVENGdaPbd4LUkLV/arcgis/rest/services/FWSApproved_Authoritative/FeatureServer/0"}],"editorialStatus":"draft","synced":"2026-11-09T02:12:57.303Z","alerts":[{"source":"NWS","kind":"Frost Advisory","severity":"Minor","title":"Frost Advisory issued November 8 at 10:11AM CST until November 9 at 8:00AM CST by NWS Huntsville AL","text":"* WHAT...Temperatures as low as 33 will result in frost formation.\n\n* WHERE...Portions of north central, northeast, and northwest\nAlabama.\n\n* WHEN...From 11 PM this evening to 8 AM CST Monday.\n\n* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive\noutdoor plants may be killed if left uncovered.","instruction":"Take steps now to protect tender plants from the cold.","url":"https://alerts.weather.gov/search?id=urn%3Aoid%3A2.49.0.1.840.0.9b8b710540847f12e2ec6793d336916110d7c343.001.1","starts":"2026-11-08T23:00:00-06:00","ends":"2026-11-09T08:00:00-06:00","id":"nws-urn:oid:2.49.0.1.840.0.9b8b710540847f12e2ec6793d336916110d7c343.001.1"}],"url":"https://directory.labs.trlibrary.com/sites/fern-cave-national-wildlife-refuge/","boundaryUrl":"https://directory.labs.trlibrary.com/boundaries/fern-cave-national-wildlife-refuge.geojson"}