Airport information
- ICAO / IATA
- KBTM / BTM
- Coordinates
- 45.9548, -112.4970
- Elevation
- 5,550 ft MSL
- Magnetic variation
- 12E
- Sectional chart
- GREAT FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- SALT LAKE CITY (ZLC)
- Flight service (FSS)
- GREAT FALLS
- NOTAM facility
- BTM
- Attendance
- ALL DAWN-DUSK
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1940/04
- Distance from city
- 3 SE
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (MDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:01 AM | 11:01Z |
| Sunrise | 05:39 AM | 11:39Z |
| Sunset | 09:24 PM | 03:24Z |
| Evening civil twilight Loggable night begins | 10:03 PM | 04:03Z |
Plan a flight from KBTM
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- ACTVT MALSR RWY 15; REIL RWY 12 & 30; PAPI RWY 12 & 30; VASI RWY 33; MIRL RWY 15/33 & 12/30 - CTAF. PAPI RWY 15 OPR CONSLY. on 123.0 — Chart Supplement ↗
Runway lighting aids — 12: 2-light PAPI (left) · 30: 2-light PAPI (left) · 15: 4-light PAPI (left) + MALSR · 33: VASI.
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 12 · 117°
- Pattern
- left (turns left)
- TPA
- 6,600 ft MSL (≈1,000 AGL)
- CTAF
- 123.0
Enter the left downwind for Rwy 12 at 6,600 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 12/30
5,100 ft × 75 ft · Asphalt (Good)- Heading
- 117° mag · 129° true
- Markings
- basic
- VGSI
- 2-light PAPI (left) (4°)
- Traffic pattern
- Left
- Approach obstacle
- Road, 16 ft, 560 ft from threshold, 275 ft R of centerline — 22:1 slope to clear
- Heading
- 297° mag · 309° true
- Markings
- basic
- VGSI
- 2-light PAPI (left) (4°)
- Traffic pattern
- Left
- Approach obstacle
- Bldg, 36 ft, 1,251 ft from threshold, 100 ft R of centerline — 29:1 slope to clear
Runway 15/33
9,000 ft × 150 ft · Asphalt (Good)- Heading
- 155° mag · 167° true
- Markings
- precision
- VGSI
- 4-light PAPI (left) (3.5°)
- Approach lights
- MALSR
- Instrument landing
- ILS/DME · CAT I · LOC 110.9 (BEY) · GS 3.71°
- Traffic pattern
- Right
- Heading
- 335° mag · 347° true
- Markings
- basic
- VGSI
- VASI (3°)
- Traffic pattern
- Left
- Approach obstacle
- Tower, 65 ft, 2,986 ft from threshold, 248 ft R of centerline — 42:1 slope to clear
| Runway | Length | Your margin |
|---|---|---|
| 12/30 | 5,100 ft | |
| 15/33 | 9,000 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| ASOS | 135.175 | |
| CNTR | 132.4 | SALT LAKE CITY CNTR |
| RDO | 122.2 | GREAT FALLS RDO |
| UNIC | 123 | CTAF/UNICOM |
Nearby navigation aids
| NavAid | Type | Freq | Radial / Dist magnetic |
|---|---|---|---|
| CPN · Coppertown | VOR-DME | 111.60 | r098° / 11.5 NM |
| HIA · Whitehall | VORTAC | 113.70 | r274° / 14.8 NM |
Airport diagram
Open PDF ↗Preview diagram
Procedures at a glance
⚠ Hot spots published at this airport — review the hot-spot chart before you taxi ↗Approaches3
Minimums & Hot Spots
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Fuel available
- 100, 100LL, Jet A
- Bottled oxygen
- HIGH/LOW
- Bulk oxygen
- HIGH/LOW
- Airframe service
- MAJOR
- Powerplant service
- MAJOR
- Parking
- tiedowns, hangars
- Other services
- Air freight, Charter, Instruction, Rental, Aircraft sales
Ownership & management
Remarks FAA
- PPR FOR UNSKED ACR OPNS WITH MORE THAN 30 PSGR SEATS CALL AMGR 406-494-3771.
- DEER IN VICINITY OF AIRPORT.
- SNOW REMOVAL OPS IN PROGRES DURING PERIODS OF SNOW.
- COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -24C.
- FOR CD IF UNA TO CTC ON FSS FREQ, CTC SALT LAKE ARTCC AT 801-320-2568.
- TWY D RSTD TO ACFT WITH WINGSPAN LESS THAN 100 FT WO PPR, CALL APMGR 406-494-3771.
- ACTVT MALSR RWY 15; REIL RWY 12 & 30; PAPI RWY 12 & 30; VASI RWY 33; MIRL RWY 15/33 & 12/30 - CTAF. PAPI RWY 15 OPR CONSLY.
- FEE FOR ALL COML ACFT & ACFT OVER 9000 LBS.
- PCR VALUE: 210/F/A/X/T
- PCR VALUE: 510/F/A/X/T
- PAPI UNUSBL BYD 5 DEG RIGHT OF RCL.
- PAPI RSTRD TO 2.1 NM FM RWY 30 THLD DUE TO HIGH TERRAIN. PAPI UNUSBL BYD 2 DEG RIGHT OF RCL.
- DO NOT USE VASI BYD 1.5 MI DUE TO HIGH TERRAIN.
- SURFACE CONDITIONS UNMONITORED BETWEEN MIDNIGHT AND 5 A.M.
Nearby airports
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open KBTM in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
About KBTM
Bert Mooney Airport (BTM · KBTM) is an airport in Butte, MT, at 5,550 ft MSL. It has 2 runways, the longest 9,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for KBTM, refreshed from the Aviation Weather Center and FAA NASR.
Does KBTM have a control tower?
No. Bert Mooney Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at KBTM?
Bert Mooney Airport has 2 runways; the longest is 9,000 ft. See the Runways tab for headings, surface, and lighting.
Where is KBTM?
Bert Mooney Airport is in Butte, MT, at an elevation of 5,550 ft MSL. Coordinates: 45.9548, -112.4970.
Fly out of KBTM often?
Save KBTM as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.