NW 139 · Northwest

H5705X100 (ASPH–GRVD) S–46, D–62, 2D–108 PCR 180 F/D/Y/T MIRL

REIL. PAPI(P2L)—GA 3.0º TCH 33´.

REIL. PAPI(P2L)—GA 3.0º TCH 41´. Tree. Rgt tfc.

H4024X100 (ASPH–GRVD) S–54, D–70, 2D–119 PCR 211 F/D/Y/T MIRL 0.4% up NW

REIL. PAPI(P2L)—GA 3.0º TCH 40´. Road. Rgt tfc.

REIL. PAPI(P2L)—GA 3.0º TCH 22´. Road.

TORA–5705 TODA–5705 ASDA–5705 LDA–5705

TORA–4023 TODA–4023 ASDA–4023 LDA–4023

TORA–5705 TODA–5705 ASDA–5705 LDA–5705

TORA–4023 TODA–4023 ASDA–4023 LDA–4023

S4 FUEL 100LL, JET A OX 3 LGT ACTIVATE MIRL Rwy 01–19 and Rwy 11–29, REIL Rwy 01, Rwy 11, Rwy 19 and Rwy 29 and PAPI Rwy 01, Rwy 11, Rwy 19, and Rwy 29—CTAF.

Attended 1300–0200Z‡. On call 24 hrs a day. For arpt cond, ctc arpt mgnt 406–480–1820. Sfc cond unmonitored 0400–1300Z‡. Flocks of water fowl invof arpt.

(406) 480-1820

AWOS–3PT 119.275 (406) 482–7323.

For CD ctc Salt Lake ARTCC at 801-320-2568.

NOTAM FILE ISN. WILLISTON (VL) (DH) VORW/DME 116.3 ISN Chan 110 N48º15.20´ W103º45.04´ 201º 37.3 NM to fld. 2365/8E. SMITH LAKE N48º06.50´ W114º27.67´ NOTAM FILE FCA. NDB (MHW) 515 SAK 019º 14.7 NM to Glacier Park Intl. 3157/15E. SPOTTED BEAR (USFS) (8U4) 3 NW UTC–7(–6DT) N47º57.70´ W113º33.57´ 3672 NOTAM FILE GTF

3800X78 (TURF–GRVL) 0.3% up SE

Trees.

Trees.

Unattended. Mountains and trees in transition area both sides of rwy. Rwy 14–32 up to 4" rock on rwy sfc. Rwy 14–32 N qtr of strip has a slgt dog–leg; dog–leg bgns 1800 ft fm N end. First 1400 ft of Rwy 14 not mkd with cones. Rwy 32 first 2400´ marked with cones spaced 200´ apart. Fone in ranger stn or at ranch 1 mi S of arpt.

406-481-0826

For CD ctc Salt Lake ARTCC at 801-320-2568. BILLINGS H–1F, 2H, L–13E IAP, AD GREAT FALLS L–13B GREAT FALLS NW, 3 SEP 2026 to 29 OCT 2026