{"schema_version":1,"airport":"20V","entries":[{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"5e07cab2730b","priority":"action","category":"remark","kind":"removed","summary":"remark removed: COMMUNICATIONS PRVDD BY DENVER RADIO ON FREQ 122.3 (KREMMLING RCO).","source":"ATC_RMK","original":"COMMUNICATIONS PRVDD BY DENVER RADIO ON FREQ 122.3 (KREMMLING RCO)."},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"4a7399fb8750","priority":"fyi","category":"frequency","kind":"removed","summary":"flight service (FSS) 122.3 via the Kremmling outlet no longer available","source":"FRQ"},{"cycle":"2026-09-03","from_cycle":"2026-08-06","id":"112ffb394d0b","priority":"fyi","category":"remark","kind":"added","summary":"new remark: For clearance delivery contact Denver ARTCC at 303-651-4257.","source":"APT_RMK","original":"FOR CD CTC DENVER ARTCC AT 303-651-4257."},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"3099c524e852","priority":"fyi","category":"runway","kind":"changed","summary":"runway 09: controlling obstacle changed (now , clearance slope 20:1); controlling obstacle: FENCE -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"B","new":""},{"field":"CNTRLN_OFFSET","old":"0","new":""},{"field":"DIST_FROM_THR","old":"426","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"28","new":"20"},{"field":"OBSTN_HGT","old":"8","new":""},{"field":"OBSTN_TYPE","old":"FENCE","new":""}]},{"cycle":"2025-09-04","from_cycle":"2025-08-07","id":"b7f7eae1f736","priority":"fyi","category":"runway","kind":"changed","summary":"runway 27: controlling obstacle changed (now , clearance slope 20:1); controlling obstacle: HILL -> none","source":"APT_RWY_END","fields":[{"field":"CNTRLN_DIR_CODE","old":"L","new":""},{"field":"CNTRLN_OFFSET","old":"371","new":""},{"field":"DIST_FROM_THR","old":"2697","new":""},{"field":"OBSTN_CLNC_SLOPE","old":"32","new":"20"},{"field":"OBSTN_HGT","old":"76","new":""},{"field":"OBSTN_TYPE","old":"HILL","new":""}]},{"cycle":"2025-08-07","from_cycle":"2025-07-10","id":"261cd4d0a64f","priority":"fyi","category":"airport","kind":"changed","summary":"airport contact address: P.O. BOX 264 -> P.O. BOX 9; name changed: Joshua Schroeder -> Shawn Mahorney; airport contact city: HOT SULPHUR SPRINGS -> GRANBY; airport contact zip code: 80451 -> 80446","source":"APT_CON","fields":[{"field":"ADDRESS1","old":"P.O. BOX 264","new":"P.O. BOX 9"},{"field":"NAME","old":"JOSHUA SCHROEDER","new":"SHAWN MAHORNEY"},{"field":"TITLE_CITY","old":"HOT SULPHUR SPRINGS","new":"GRANBY"},{"field":"ZIP_CODE","old":"80451","new":"80446"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"d007b06bc455","priority":"fyi","category":"airport","kind":"changed","summary":"cold temperature airport (altitude correction at or below): -19C -> -18C","source":"APT_BASE","fields":[{"field":"CTA","old":"-19C","new":"-18C"}]},{"cycle":"2025-05-15","from_cycle":"2025-04-17","id":"6f954824b798","priority":"fyi","category":"remark","kind":"changed","summary":"remark updated: Cold temperature airport; altitude correction required at or below -18C.","source":"APT_RMK","original":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -18C.","fields":[{"field":"REMARK","old":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -19C.","new":"COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -18C."}]}],"first_cycle":"2025-05-15","last_cycle":"2026-09-03"}