Colstrip Airport

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Location

Latitude: 
 45-51-10.2000N (45.852833)
Longitude: 
 106-42-33.4000W (-106.709278)
Elevation: 
 3427.6 feet MSL (1045 m MSL)
Magnetic Variation: 
 9.1 E (as of December 2025 from WMM2020 model)
Time Zone: 
 UTC -7.0 (Standard Time)
UTC -6.0 (Daylight Savings Time)
From City: 
 03 N.M. SW of Colstrip, Montana
Found On: 
 Billings Chart
FAA Region: 
 ANM

Contacts

Manager: 
Publicly owned: 
BRIAN SCHWEND
PO BOX 45
FORSYTH, MT 59327
406-351-1261		 COUNTY OF ROSEBUD
PO BOX 47
FORSYTH, MT 59327
406-346-2251

Operations

Airport Status: 
 Operational
Facility Use: 
 Public
Type: 
 Airport
Activation Date: 
 11/1990
Control tower: 
 No
Attendance (Months/Days/Hours): 
 Months/Days/Hours
ON CALL
Boundary ARTCC: 
 ZLC (Salt Lake City)
Responsible ARTCC: 
 ZLC (Salt Lake City)
Lighting Schedule: 
 SEE RMK
Segmented Circle Indicator: 
 Yes
Traffic Pattern Altitude (MSL): 
 4428 feet (1350 m)
NOTAMs Facility: 
 GTF
NOTAM-D Service: 
 Yes

Based Aircraft

Annual Operations (as of )

Communications

CTAF:  122.700
Unicom:  122.700
AWOS-3PT:  118.525 (406-748-3849)

  • APCH/DEP CTL SVC PRVDD BY SALT LAKE ARTCC (ZLC) ON 126.85/305.2 (MILES CITY RCAG).
   

Fixed Based Operators (FBOs) & Fuel

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Area Code: 406
Business Name Frequency Phone Fuel Grade
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Flight Service Stations

Primary Alternate
FSS on Field:  N
FSS Name (ID):  Great Falls(GTF)
Frequency: 
Toll Free Phone:  1-800-WX-BRIEF

Instrument Procedures / Charts


FAA Terminal Procedures valid from 0901Z 11/27/25 to 0901Z 12/25/25.

There are various types of charts available for an airport. They are listed in the Page Type column. Here is a legend for those types:

APD - Airport Diagram
DP - Departure Procedure Charts
HOT - Hot Spots
IAP - Instrument Approach Procedure Charts
MIN - Minimums
STAR - Standard Terminal Arrival Charts
Page Type Page Name Volume Action Since
Last Cycle
IAP GPS RWY 06 NW-1
IAP GPS RWY 24 NW-1
MIN TAKEOFF MINIMUMS NW-1
ODP CISPU ONE (OBSTACLE) (RNAV) NW-1
ODP CONUK ONE (OBSTACLE) (RNAV) NW-1
Terminal Procedures are only available for airports in several countries with more being added all the time. If you are looking for a specific country's charts, please send an email to support(at)airportguide.com stating the country name. This will be used to prioritize the implementation.

Navigation Aids (Navaids) near M46

Navigational Aid (NAVAID) distances from the airport are listed in Nautical Miles (NM).

Nearby Airports with Fuel

Dist (NM) Name (Airport IDs) True Hdg Mag Hdg Fuel Grade
25.3 Tillitt Field Airport
(1S3)		 8 359 100LL
48.5 Frank Wiley Field Airport
(MLS KMLS MLS)		 44 35 100LL, Jet A
66.0 Sheridan County Airport
(SHR KSHR SHR)		 190 181 100, Jet A, Jet A-1+
76.7 Billings Logan International Airport
(BIL KBIL BIL)		 268 258 100LL, Jet A
84.9 Roundup Airport
(RPX KRPX RPX)		 296 286 100LL, Jet A-1
86.3 Laurel Municipal Airport
(6S8)		 264 254 100LL, Jet A
88.3 Johnson County Airport
(BYG KBYG BYG)		 180 171 100LL, Jet A
92.4 North Big Horn County Airport
(U68)		 232 222 100LL
98.9 South Big Horn County Airport
(GEY KGEY GEY)		 216 206 100LL, Jet A

Notices to Airmen (NOTAMS)

NOTAMs

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NOTAM Radius Search

NOTAMS within

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This field is required
NM of M46

NOTAM Flight Path Search (Enter from two to five locations below)

NOTAMS within

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NM of M46

Remarks

A110-1 HILL 1550' FM RY 24 END 600' LEFT & 93' ABOVE RY THR.
A110-2 700 FT POWER PLANT STACKS 4.5 NM NE OF ARPT.
A110-4 PHONE AVAIL ON ARPT.
A110-5 COLD TEMPERATURE AIRPORT. ALTITUDE CORRECTION REQUIRED AT OR BELOW -34C.
A110-6 FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.
A81-APT ACTVT PAPI 06 & 24 - CTAF; MIRL RWY 06/24 PRESET LOW INTST DUSK-0100; AFT 0100 ACTVT - CTAF.

Runways

Runway Summary

Runways: 06/24
Longest Runway: 06/24 is 5100 ft (1554 m) long
Runways with an Instrument Approach:

M46 Airport Runway Details

Runway 06/24  5100 ft x 75 ft (1554 m x 23 m)
Runway Length Source:  3RD PARTY SURVEY as of 08/07/2010
Surface:  Asphalt - Good condition - No special surface treatment
Runway Edge Lights:  Medium Intensity

Runway Weight Bearing Capacity (in thousands of pounds) 
Single Wheel Landing Gear:  12.5

Runway 06

Runway 24
Elevation: 
 3427.6 3383.4
Latitude: 
 45-51-03.5458N 45-51-16.9451N
Longitude: 
 106-43-08.1088W 106-41-58.6665W
Runway True Alignment: 
 075 255
Glide Path Angle: 
 3.0 degrees 3.0 degrees
Runway Markings Type: 
 Nonprecision Instrument Nonprecision Instrument
Runway Markings Condition:
Good Good
Visual Glide Slope Indicators: 
 2-Light PAPI On Left Side Of Runway 2-Light PAPI On Left Side Of Runway
Threshold Crossing Height: 
 24 24

Services

Airframe Repair: 
 Major
Powerplant Repair: 
 Major
Bottled Oxygen: 
 None
Bulk Oxygen: 
 None
Fuel Available: 
 100LL, Jet A
Landing Fees: 
 No
Parking: 
 Hangars and tiedowns available

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Maps & Diagrams

M46 Sectional

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M46 Diagram


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