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FAA 7460-1 › Colorado ›

Building or using a crane near La Junta Muni (LHX)?

La Junta Muni in La Junta, Colorado is a public-use airport. Under 14 CFR 77.9, anything within 20,000 feet of its runways that rises above a 100:1 slope needs FAA Form 7460-1 at least 45 days before construction. Check your exact site free.

No address handy? Try 16700 Saticoy St, Van Nuys, CA 91406

How tall can you build near LHX without filing?

The notice surface rises 1 foot for every 100 feet of horizontal distance from the nearest point of the nearest runway, starting at the runway's elevation. Using the lowest runway-end elevation, 4,154 ft above sea level:

Distance from nearest runwayNotice required above (height over 4,154 ft)…which is this elevation (AMSL)
250 ft2 ft4,156 ft
500 ft5 ft4,159 ft
1,000 ft10 ft4,164 ft
2,000 ft20 ft4,174 ft
3,000 ft30 ft4,184 ft
5,000 ft50 ft4,204 ft
7,500 ft75 ft4,229 ft
10,000 ft100 ft4,254 ft
15,000 ft150 ft4,304 ft
20,000 ft200 ft4,354 ft
Beyond 20,000 ftOnly the 200-ft-above-ground rule applies (77.9(a))

If your ground is lower than 4,154 ft you can build taller by the difference; if it's higher, less. Cranes count at their maximum height. The free check above uses USGS ground elevation for your exact spot.

Runways and notice boundary

5,000 ftN

Dashed line: the 20,000-ft area where the 100:1 notice slope applies; inner line: 5,000 ft.

RunwayLengthEnd elevations (ft AMSL)
08/266,849 ft4228.6 / 4153.8
12/305,803 ft4185.7 / 4157.9

Filing Form 7460-1 near LHX

More: Do I need to file Form 7460-1? · Cranes and Form 7460-1

Other public-use airports nearby

Source: FAA airport, runway and runway-end data (NASR cycle effective 2026/10/01). Screening only — the FAA issues determinations.