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 12-May-2025

	Local (UTC-6)	Zulu (UTC)
Morning civil twilight	05:25	11:25
Sunrise	06:00	12:00
Sunset	20:49	02:49
Evening civil twilight	21:24	03:24

Current date and time

Zulu (UTC)	13-May-2025 02:53:30
Local (UTC-6)	12-May-2025 20:53:30

METAR

KBTM 22nm SW	130153Z AUTO 31008KT 10SM -RA BKN029 OVC036 06/02 A2973 RMK AO2 SLP047 P0001 T00610017
KHLN 24nm N	130153Z 21007G15KT 10SM FEW026 BKN046 OVC060 13/01 A2965 RMK AO2 PK WND 24033/0106 SLP038 T01330011
K3U3 32nm W	130235Z AUTO 28014G19KT 10SM BKN055 OVC070 08/00 A2969 RMK AO2 T00800002
KRVF 41nm S	130215Z AUTO 33014G26KT 10SM SCT050 BKN060 BKN080 10/00 A2968 RMK AO2

TAF

KBTM 22nm SW	122144Z 1222/1318 32015G23KT P6SM -RA BKN060 OVC080 FM130400 31010KT P6SM -RA OVC040 FM130600 27005KT 4SM -RA BR OVC025
KHLN 24nm N	121743Z 1218/1318 26011KT P6SM SCT060 BKN250 FM122000 26016G24KT P6SM VCSH SCT040 BKN060 TEMPO 1220/1224 VRB15G35KT 6SM -SHRA BKN035 FM130000 29014G22KT P6SM -SHRA BKN035 PROB30 1303/1309 6SM -RA BR SCT015 OVC025 FM130900 VRB06KT P6SM VCSH BKN025 FM131600 30009KT P6SM VCSH SCT025 BKN050

NOTAMs

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