K04V Saguache Muni K0CO Berthoud Pass K1JW Juliet Madis K1LW Lima Madis K1MW Mike Madis K1NW November Madis K1OW Oscar Madis K1V6 Canon City K2V6 Yuma K4BM Wilkerson Pass K4V0 Rangely K5SM Sunlight K7BM Bald Mountain KABH Ellicott-B Afa KAEJ Central Colorado Regional (Buena Vista) KAFF USAF Academy Airfield (Colorado Springs) KAIB Hopkins Field (Nucla) KAJZ Blake Field (Delta) KAKO Colorado Plains Regional (Akron) KALS San Luis Valley Regional Airport/Bergman Field (Alamosa) KANK Salida Airport - Harriet Alexander Field KAPA Centennial (Denver) KASE Aspen-Pitkin County Airport (Sardy Field) KBDU Boulder Municipal KBJC Rocky Mountain Metropolitan (Denver) KBKF Buckley Space Force Base (Aurora) KC07 Walton Peak KC99 Dakota Hill KCAG Craig Moffat KCCU Red Cliff Pass KCEZ Cortez Municipal KCFO Colorado Air and Space Port (Denver) KCOS City of Colorado Springs Municipal KCPW Wolf Creek Pass KCWN Cheyenne Mountai KDEN Denver KDRO Durango La Plata County KEEO Meeker KEGE Eagle County Regional KEIK Erie Municipal KFCS Butts AAF (Fort Carson) Air Field KFLY Meadow Lake (Colorado Springs) KFMM Fort Morgan Municipal KFNL Northern Colorado Regional (Loveland) KGJT Grand Junction Regional KGNB Granby Grand County KGUC Gunnison Crested Butte Regional KGXY Greeley–Weld County KHDN Yampa Valley (Hayden) KHEQ Holyoke KITR Kit Carson County (Burlington) KLAA Southeast Colorado Regional (Lamar) KLHX La Junta Municipal KLIC Limon Municipal KLMO Vance Brand (Longmont) KLXV Lake County (Leadville) KMNH Monument/Elbert KMTJ Montrose Regional KMYP Monarch Pass KPSO Stevens Field (Pagosa Springs) KPUB Pueblo Memorial KRCV Astronaut Kent Rominger (Del Norte) KRIL Garfield County Regional (Rifle) KSBS Steamboat Springs Bob Adams Field KSHM Schriever Afb KSPD Springfield KSTK Sterling Municipal KTAD Perry Stokes (Trinidad) KTEX Telluride Regional KVTP La Veta Pass