Lemhi County Airport
KSMN has 1 runway. The longest is 17/35 at 5,510 ft × 75 ft (asphalt).
FAA NASR data, cycle 2026-09-03
KSMN field elevation is 4,043 ft MSL. The standard traffic pattern altitude at KSMN is 5,040 ft MSL (1,000 ft AGL). Fuel available at KSMN: 100 octane, Jet A.
FAA NASR data, cycle 2026-09-03
CTAF 122.8 MHz — KSMN is non-towered; self-announce position and intentions on CTAF.
Check KSMN against your personal minimums, plan a route to it, and see the best runway for the current wind — free.
No, KSMN is a non-towered airport. The CTAF frequency is 122.8 MHz.
The AWOS frequency at KSMN (Lemhi County Airport) is 135.075 MHz.
KSMN has 1 runway (17/35). The longest runway is 5,510 feet.
KSMN uses the standard traffic pattern altitude of 1,000 feet AGL — about 5,040 feet MSL at a field elevation of 4,043 feet.
Yes. KSMN (Lemhi County Airport) has 100 octane, Jet A available. Call the field for hours, self-serve availability and price.
KSMN (Lemhi County Airport) has a field elevation of 4,043 feet MSL.
KSMN (Lemhi County Airport) is located in Salmon, ID.