{"as_of":"2026-10-30","attribution":"FAA and NTSB data via eFlight Registry (https://eflight.com)","connections":[{"group":"In town","items":[{"count":16,"name":"Aircraft registered in West Milford","note":"16 piston singles","unit":"aircraft","url":"https://eflight.com/airports/4N1#registered"},{"count":3,"name":"Sky Training LLC","note":"","unit":"aircraft in town","url":"https://eflight.com/search?q=Sky Training LLC"}],"relation":"home to"},{"group":"Record","items":[{"count":39,"name":"NTSB accidents and incidents at or near this airport","note":"4 fatal","unit":"since 1982","url":"https://eflight.com/airports/4N1#accidents"},{"count":1189,"name":"Accidents and incidents in New Jersey","note":"136 in the last ten years","unit":"since 1982","url":"https://eflight.com/accidents?state=NJ"}],"relation":"scene of"},{"group":"Around it","items":[{"count":8,"name":"Nearby landing places within 30 nautical miles","note":"","unit":"airports, heliports and seaplane bases","url":"https://eflight.com/airports/4N1#nearby"},{"count":40,"name":"Public-use airports in New Jersey","note":"","unit":"landing places","url":"https://eflight.com/airports?state=NJ"},{"count":3017,"name":"New Jersey","note":"","unit":"aircraft registered","url":"https://eflight.com/states/NJ"}],"relation":"in"},{"group":"Live","items":[{"count":null,"name":"Aircraft near this airport right now","note":"","unit":"","url":"https://eflight.com/airports/4N1#liveapt"},{"count":null,"name":"The live map, zoomed here","note":"","unit":"","url":"https://eflight.com/live?q=4N1"}],"relation":"seen at"},{"group":"Analytics","items":[{"count":null,"name":"Airports by the numbers","note":"","unit":"","url":"https://eflight.com/analytics/airports"},{"count":null,"name":"Where accidents happen, by state and airport","note":"","unit":"","url":"https://eflight.com/analytics/accidents-by-place"},{"count":null,"name":"The accident map","note":"","unit":"","url":"https://eflight.com/analytics/accident-map"}],"relation":"compared in"}],"graph":"https://eflight.com/graph","graph_index":"https://eflight.com/graph/index.json","license":"https://creativecommons.org/licenses/by/4.0/","node":{"city":"West Milford","id":"4N1","kind":"airport","latitude":41.12838888,"longitude":-74.34652777,"name":"Greenwood Lake Airport","state":"NJ","type":"airport","url":"https://eflight.com/airports/4N1"},"source":"FAA Civil Aviation Registry, FAA airport file, NTSB accident database; assembled by eFlight Registry"}