AirNav: 3U9 - Boulder Airport

3U9

Boulder Airport
Boulder, Montana, USA

GOING TO BOULDER?

Reserve a Hotel Room

FAA INFORMATION EFFECTIVE 14 MAY 2026

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)

Loc | Ops | Rwys | IFR | FBO | Links
Com | Nav | Svcs | Stats | Notes

Road maps at: MapQuest Bing Google

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 08-Jun-2026

	Local (UTC-6)	Zulu (UTC)
Morning civil twilight	05:00	11:00
Sunrise	05:38	11:38
Sunset	21:17	03:17
Evening civil twilight	21:55	03:55

Current date and time

Zulu (UTC)	08-Jun-2026 20:33:42
Local (UTC-6)	08-Jun-2026 14:33:42

METAR

KBTM 22nm SW	081953Z AUTO 15011G19KT 130V190 10SM CLR 18/M09 A2990 RMK AO2 SLP104 T01781094 $
KHLN 24nm N	081953Z VRB06G18KT 10SM CLR 20/M01 A2985 RMK AO2 SLP113 T02001006 $
K3U3 32nm W	082015Z AUTO 24010G16KT 10SM CLR 21/M11 A2985 RMK AO2 T02051105
KRVF 41nm S	082015Z AUTO 00000KT 10SM FEW120 19/M05 A2989 RMK AO2

TAF

KBTM 22nm SW	081720Z 0818/0918 14005KT P6SM SCT250 FM082200 21011G21KT P6SM SCT100 FM090200 15006KT P6SM OVC080 FM090800 23005KT P6SM OVC045
KHLN 24nm N	081720Z 0818/0918 13007KT P6SM FEW250 FM082100 09009KT P6SM SKC FM090000 12008KT P6SM BKN120 FM090800 VRB04KT P6SM BKN100 PROB30 0908/0914 6SM -SHRA OVC060

NOTAMs

Click for the latest NOTAMs

NOTAMs are issued by the DoD/FAA and will open in a separate window not controlled by AirNav.

Would you like to see your business listed on this page?
	If your business provides an interesting product or service to pilots, flight crews, aircraft, or users of the Boulder Airport, you should consider listing it here. To start the listing process, click on the button below

Other Pages about Boulder Airport


Copyright © AirNav, LLC. All rights reserved.	Privacy Policy Contact