Non-towered · Class G at the surface

Ravalli County (KHRF) radio calls

Hamilton, MTICAO KHRF · FAA HRF

Ravalli County is a non-towered airport in Hamilton, MT. Nobody clears you to do anything: you self-announce on the CTAF, 122.8, as Ravalli County Traffic, with the airport name at the start and end of each call.

No Class B, C, D or E surface area is designated for this airport in the FAA data, so the airspace at the surface is Class G.

Frequencies

CTAFRavalli County Traffic122.8

Airport

Runways
17 · 35
Elevation
3,636 ft
Pattern altitude
800 ft MSL (published TPA)
Position
46.257, -114.124

Non-towered airport: self-announce on the CTAF

Sample calls at KHRF

Ravalli County has no operating control tower. Every call below goes out on the CTAF, 122.8, to the other aircraft, not to a controller. The runway shown is 17; use whichever runway the wind and the traffic dictate on the day.

The aircraft is the AIM’s own example, Cessna Three One Six Zero Foxtrot; the squawk codes, altitudes and headings are illustrative. Frequencies, station names and runway numbers are this airport’s, from the FAA data.

  1. Tune 122.8. Nobody clears you; you announce and you listen. The airport name goes at the start and the end of every call, and the runway is always a number, never "the active" (AIM 4-1-9 g 8).
  2. YouRavalli County traffic, Cessna Three One Six Zero Foxtrot, taxiing to runway one seven, Ravalli County.
  3. YouRavalli County traffic, Cessna Six Zero Foxtrot, departing runway one seven, departing the pattern to the north, Ravalli County.
  4. Announce until you are about 10 miles out; on the way back, start announcing at 10 miles (AIM 4-1-9 c 1, TBL 4-1-1).
  5. YouRavalli County traffic, Cessna Three One Six Zero Foxtrot, one zero miles south, two thousand five hundred, landing Ravalli County, Ravalli County.
  6. YouRavalli County UNICOM, Cessna Six Zero Foxtrot, one zero miles south, request wind and runway information, Ravalli County.
  7. A UNICOM operator, if one is on, answers with the wind and the runway in use (AIM 4-1-9 h). If nobody answers, choose the runway from the wind and the pattern traffic you can hear.
  8. YouRavalli County traffic, Cessna Six Zero Foxtrot, entering left downwind runway one seven, full stop, Ravalli County.
  9. YouRavalli County traffic, Cessna Six Zero Foxtrot, left base runway one seven, Ravalli County.
  10. YouRavalli County traffic, Cessna Six Zero Foxtrot, final runway one seven, full stop, Ravalli County.
  11. YouRavalli County traffic, Cessna Six Zero Foxtrot, clear of runway one seven, Ravalli County.

If things change. Do not use "any traffic in the area, please advise"; the AIM says it is not to be used under any condition (AIM 4-1-9 g 1). Listen for ten miles before you arrive; most of what you want to know has already been said.

Phraseology from AIM 4-1-9 c 1, g 1, g 8, h; TBL 4-1-1; 4-3-3. What TowerTalk grades against →

The calls you will make here

Nearby in Montana

Frequencies, runways and airspace from the FAA National Airspace System Resources (NASR) 28-day subscription, cycle effective Oct 29, 2026. Training use only. Always verify against a current Chart Supplement and sectional chart before flight; frequencies change. TowerTalk is not affiliated with the FAA. Report a discrepancy.