M46
Colstrip Airport
Official FAA Data Effective 2026-08-06 0901Z
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Location Information for M46
Coordinates: N45°51.17' / W106°42.56'
Located 03 miles SW of Colstrip, Montana on 188 acres of land. View all Airports in Montana.
Surveyed Elevation is 3427 feet MSL.
Operations Data
Airport Use:Open to the public
Activation Date:November 1990
Status:Operational
Control Tower:No
Seg-Circle:Yes
Beacon:White-Green
(Lighted Land Airport)
Wind Indicator:Yes, Lighted
Lighting Schedule:SEE RMK
A.R.T.C.C.:SALT LAKE CITY
F.S.S.:GREAT FALLS
NOTAMs Facility:GTF (NOTAM-D available)
Sectional Chart:BILLINGS
AirspaceAnalysis:NO OBJECTION
Attendance:ON CALL
Airport Communications
AWOS-3PT:118.525 Tel. 406-748-3849
UNICOM:122.700
CTAF:122.700
AWOS-3PT at 1S3 (25.5 N):121.125 406-346-2571
AWOS-3 at 00U (40.3 W):118.325 406-665-4241
ASOS at MLS (48.6 NE):135.575 406-232-1465
Remarks:
  • APCH/DEP CTL SVC PRVDD BY SALT LAKE ARTCC (ZLC) ON 126.85/305.2 (MILES CITY RCAG).
Nearby Navigation Aids
IDNameFreqRadial / Range
VOD MLS MILES CITY 112.10 216°44.8
VOT BIL BILLINGS 114.50 073°80.4
IDNameFreqBearing / Range
Runway 06/24
Dimensions:5100 x 75 feet / 1554 x 23 meters
Surface:Asphalt in Good Condition
Weight Limits:S-12
Edge Lighting:Medium Intensity
Runway 06Runway 24
Coordinates:N45°51.06' / W106°43.14'N45°51.28' / W106°41.98'
Elevation: 3427.6 3383.4
Runway Heading: 75° True 255° True
Markings:Non-Precision Instrument in good condition.Non-Precision Instrument in good condition.
Glide Slope IndicatorP2L (3.00° Glide Path Angle)P2L (3.00° Glide Path Angle)
Services Available
Fuel:NONE
Transient Storage:Tiedowns
Airframe Repair:NOT AVAILABLE
Engine Repair:NOT AVAILABLE
Bottled Oxygen:NOT AVAILABLE
Bulk Oxygen:NOT AVAILABLE
Ownership Information
Ownership:Publicly owned
Owner:COUNTY OF ROSEBUD
PO BOX 47
FORSYTH, MT 59327
406-346-2251
Manager:BRIAN SCHWEND
PO BOX 45
FORSYTH, MT 59327
406-351-1261
Other Remarks
  • HILL 1550' FM RY 24 END 600' LEFT & 93' ABOVE RY THR.
  • 700 FT POWER PLANT STACKS 4.5 NM NE OF ARPT.
  • PHONE AVAIL ON ARPT.
  • COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -34C.
  • FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
  • ACTVT PAPI 06 & 24 - CTAF; MIRL RWY 06/24 PRESET LOW INTST DUSK-0100; AFT 0100 ACTVT - CTAF.
Weather Minimums
Instrument Approach Procedure (IAP) Charts
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