Alpine County Airport
M45 has 1 runway. The longest is 17/35 at 4,443 ft × 50 ft (asphalt).
FAA NASR data, cycle 2026-09-03
M45 field elevation is 5,867 ft MSL. The published traffic pattern altitude at M45 is 6,670 ft MSL (800 ft AGL).
FAA NASR data, cycle 2026-09-03
CTAF 122.9 MHz — M45 is non-towered; self-announce position and intentions on CTAF.
Check M45 against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, M45 is a non-towered airport. The CTAF frequency is 122.9 MHz.
M45 has 1 runway (17/35). The longest runway is 4,443 feet.
M45 publishes a traffic pattern altitude of 800 feet AGL — about 6,670 feet MSL — which is not the standard 1,000 feet.
M45 (Alpine County Airport) has a field elevation of 5,867 feet MSL.
M45 (Alpine County Airport) is located in Markleeville, CA.