AirNav: 3U9 - Boulder Airport

3U9

Boulder Airport
Boulder, Montana, USA

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FAA INFORMATION EFFECTIVE 17 APRIL 2025

Location

FAA Identifier:	3U9
Lat/Long:	46-12-42.0000N 112-06-27.4000W 46-12.700000N 112-06.456667W 46.2116667,-112.1076111 (estimated)
Elevation:	4968 ft. / 1514 m (estimated)
Variation:	17E (1985)
From city:	2 miles S of BOULDER, MT
Time zone:	UTC -6 (UTC -7 during Standard Time)
Zip code:	59632

Airport Operations

Airport use:	Open to the public
Activation date:	07/1963
Control tower:	no
ARTCC:	SALT LAKE CITY CENTER
FSS:	GREAT FALLS FLIGHT SERVICE STATION
NOTAMs facility:	GTF (NOTAM-D service available)
Attendance:	UNATNDD
Wind indicator:	yes
Segmented circle:	yes

Airport Communications

CTAF:

122.9

Nearby radio navigation aids

VOR radial/distance	VOR name	Freq	Var
HIAr349/21.2	WHITEHALL VOR/DME	113.70	18E
HLNr183/24.6	HELENA VORTAC	117.70	12E
CPNr052/28.7	COPPERTOWN VOR/DME	116.05	16E

NDB name		Hdg/Dist		Freq		Var		ID
HAUSER		202/25.9		386		12E		HAU	.... .- ..-

Airport Services

Parking:	tiedowns
Airframe service:	NONE
Powerplant service:	NONE
Bottled oxygen:	NONE
Bulk oxygen:	NONE

Runway Information

Runway 11/29

Dimensions:	3675 x 72 ft. / 1120 x 22 m
Surface:	turf, in fair condition HAS 1% TO 3% UPHILL GRADIENT FROM RY 29 END TO RY 11 END.
Runway edge markings:	RY 11/29 THLDS & EDGES MARKED WITH WHITE CONES
	RUNWAY 11	RUNWAY 29
Latitude:	46-12.893308N	46-12.506325N
Longitude:	112-06.790635W	112-06.121153W
Elevation:	4968.0 ft.	4910.0 ft.
Traffic pattern:	left	left
Runway heading:	113 magnetic, 130 true	293 magnetic, 310 true
Markings:	NSTD, in good condition	NSTD, in good condition

Airport Ownership and Management from official FAA records

Ownership:	Publicly-owned
Owner:	TWN OF BOULDER & JEFFERSON CO COUNTY COURTHOUSE BOX H BOULDER, MT 59632 Phone 406-225-4025
Manager:	AL MARTINI PO BOX 2 BOULDER, MT 59632 Phone (406) 431-7519

Additional Remarks

-	NO SNOW REMOVAL
-	NO PHONE ON AIRPORT.
-	-2 FT DRAINAGE DITCH +1 FT BERM WEST SIDE OF RY FULL LENGTH; 43 FT FM RY 11/29 CNTRLN.
-	FOR CD CTC HELENA APCH AT 406-449-5756/5761, WHEN APCH CLSD CTC SALT LAKE ARTCC AT 801-320-2568.

Instrument Procedures

There are no published instrument procedures at 3U9.

Some nearby airports with instrument procedures:

KBTM - Bert Mooney Airport (22 nm SW)
KHLN - Helena Regional Airport (24 nm N)
38S - Deer Lodge-City-County Airport (29 nm W)
3U3 - Bowman Field Airport (32 nm W)
KRVF - Ruby Valley Field Airport (41 nm S)

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Aerial photo
WARNING: Photo may not be current or correct Photo by Brian Handy Photo taken 16-Jul-2014 looking west. Do you have a better or more recent aerial photo of Boulder Airport that you would like to share? If so, please send us your photo.

Sectional chart

Airport distance calculator
Flying to Boulder Airport? Find the distance to fly. From to 3U9

Sunrise and sunset

Times for 05-May-2025

	Local (UTC-6)	Zulu (UTC)
Morning civil twilight	05:36	11:36
Sunrise	06:10	12:10
Sunset	20:41	02:41
Evening civil twilight	21:15	03:15

Current date and time

Zulu (UTC)	05-May-2025 22:55:50
Local (UTC-6)	05-May-2025 16:55:50

METAR

KBTM 22nm SW	052153Z AUTO 36009G17KT 7SM -SN OVC037 03/M01 A3020 RMK AO2 SNB11 SLP239 P0000 T00281006
KHLN 24nm N	052153Z 35008KT 10SM SCT055 BKN095 09/02 A3024 RMK AO2 SLP260 T00890017
K3U3 32nm W	052235Z AUTO 02019KT 10SM FEW018 SCT065 OVC080 04/01 A3022 RMK AO2 T00420009
KRVF 41nm S	052215Z AUTO 01024G30KT 2 1/2SM RA FEW006 02/02 A3015 RMK AO2

TAF

KBTM 22nm SW	052209Z 0522/0618 36010G20KT 6SM -SN OVC035 FM052300 03010G18KT 6SM -SNRA BR SCT015 OVC030 FM060200 12007KT P6SM BKN035
KHLN 24nm N	052001Z 0520/0618 36011KT P6SM SCT030 BKN050 TEMPO 0520/0523 -SHRA BKN030 FM060000 VRB05KT P6SM SCT040 BKN070

NOTAMs

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