Whetstone International

H28 · Port Of Del Bonita, MT · Non-towered · Print kneeboard · Open on the map

Elevation

4,336 ft MSL

Longest runway

4,440 ft 07/25

Runway

Mag var

18E

CTAF 122.8

Nearby now

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Weather

METAR observed

No weather station at H28. Nearby reporting stations: KCTB (29 NM), KSBX (46 NM), KGPI (71 NM).

TAF forecast

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Sun & FAA night2026-09-18 · night begins 08:10 PM

Event	Local (MDT)	UTC
Morning civil twilight Loggable night ends	06:40 AM	12:40Z
Sunrise	07:12 AM	13:12Z
Sunset	07:38 PM	01:38Z
Evening civil twilight Loggable night begins	08:10 PM	02:10Z

Loggable night (§1.1)

08:10 PM → 06:40 AM

Night currency (§61.57)

08:38 PM → 06:12 AM

Plan a flight from H28

Destination

TAS (kt)Burn (gph)Reserve (hr)Cruise (ft)Max alt (ft)Wind from (°)Wind (kt)

Winds aloft NOAA forecast · 3,000 to 53,000 ft

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Full reports: nearest reporting station

Advisories

NOTAMs · Loading NOTAMs…

Pilot reports · Loading PIREPs…

Airspace hazards · Checking SIGMETs and G-AIRMETs…

Temporary flight restrictions · Checking for TFRs…

Runways

RWY 25LEFT traffic

Heading: 250° mag · 268° true
Dimensions: 4,440 × 65 ft
TPA: 5,300 ft MSL (≈1,000 AGL) · standard
Surface: Turf
CTAF: 122.8

Enter the left downwind (heading 070°) on the 45° at 5,300 ft MSL (≈1,000 AGL).

More details — RWY 25

Condition: Fair.

Pattern side: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: schematic (headings + lengths)

Will it fit? Your aircraft's required runway length (from the POH) — checked against every runway here

ft · ≥1.5× comfortable, under 1.25× tight · saved across airports

Runway	Length	Your margin
07/25	4,440 ft

Prefer one flat page? Full runway details for H28 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the H28 kneeboard →

Comms & NavAids

Communication frequencies

Taxi & takeoff

CTAF

122.8

UNICOM

122.8

Source: FAA NASR (current 28-day cycle).

Nearby navigation aids

CTB 113.35

NavAid	Type	Freq · ch	Range	Radial / Dist magnetic
CTB · Cut Bank	VOR/DME	113.35 · 80Y	Low	r309° / 31.6 NM

Prefer one flat list? All H28 frequencies →

Charts & procedures

PDF ↗

Chart Supplement ↗

VFR sectional →

Airport info

Airport information

FAA LID: H28
Coordinates: 49.0000, -112.7926
Elevation: 4,336 ft MSL
Magnetic variation: 18E
Sectional chart: GREAT FALLS
Airport use: Public
Control tower: No
ARTCC: SALT LAKE CITY (ZLC)
Flight service (FSS): GREAT FALLS · 122.3 · 1-800-WX-BRIEF
NOTAM facility: GTF
Attendance: UNATNDD
Segmented circle: No
Wind indicator: yes
Activated: 1987/06
Distance from city: 32 NW

Night operations

Pilot-controlled lighting: Usually keyed on CTAF 122.8 — confirm the click sequence in the Chart Supplement ↗

FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.

Services fuel · repairs · oxygen · attendance

Parking: tiedowns

Ownership & management 2 contacts

Owner

MONTANA AERONAUTICS DIVISION

PO BOX 200507, HELENA, MT

406-444-2506

Manager

KAREN HALLENBECK

PO BOX 200507, HELENA, MT

406-444-2506

Remarks FAA · 7 notes

General

NO SNOW REMOVAL.
FOR CD CTC SALT LAKE ARTCC AT 801-320-2568.

Runways

+4 FT PARL FENCES 44 FT L & R FULL LEN.
THR MKD BY DOUBLE CONES; EDGE MKD BY WHITE CONES SPACED 200 FT.
THR MKD BY DOUBLE CONES; EDGE MKD BY WHITE CONES SPACED 200 FT.
GOPHER HOLES.

Obstructions

PLINE MKD WITH RED BALLS.

Nearby airports

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Also nearby: 8S0 Starr-Browning Airstrip (27 NM) · 7S8 Ross International (32 NM) · 06MT Torgerson (private) (38 NM) · 7S7 Valier (47 NM)

About H28

Whetstone International (H28) is an airport in Port Of Del Bonita, MT, at 4,336 ft MSL. It has 1 runway, the longest 4,440 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for H28, refreshed from the Aviation Weather Center and FAA NASR.

Does H28 have a control tower?

No. Whetstone International is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.

What is the longest runway at H28?

Whetstone International has 1 runway; the longest is 4,440 ft. See the Runways section for headings, surface, and lighting.

Where is H28?

Whetstone International is in Port Of Del Bonita, MT, at an elevation of 4,336 ft MSL. Coordinates: 49.0000, -112.7926.

More about H28

Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open H28 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.

Something here wrong or out of date? Report a data problem.