BOULDER (3U9)

FAA cycle effective Aug 6, 2026

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Runway Information

Runway 11/29

Primary

Dimensions

3675 x 72 ft

Surface

TURF

Treatment

NONE

Airport Charts

Airport Diagram

FAA airport/taxi diagram

Not available

Chart Supplement

Additional airport information

Communications

CTAF

122.9

ARTCC

ZLC

Flight Service Station

1-800-WX-BRIEF

✏️

Airport Notes

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. RY 11/29 THLDS & EDGES MARKED WITH WHITE CONES HAS 1% TO 3% UPHILL GRADIENT FROM RY 29 END TO RY 11 END.

Operations

Segmented Circle

Yes

Location & Coordinates

Latitude

46.21166666

46.2116667°

Longitude

-112.10761111

-112.1076111°

Elevation

4,968 ft MSL

Magnetic Variation

Sectional Chart

GREAT FALLS

Contact Information

Airport Manager

AL MARTINI

(406) 431-7519

PO BOX 2, BOULDER, MT 59632

Owner

TWN OF BOULDER & JEFFERSON CO

406-225-4025

COUNTY COURTHOUSE BOX H, BOULDER, MT 59632

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For planning and reference purposes only. Airport data may be inaccurate or outdated. Pilots must verify all information using current FAA publications.