79S Fort Benton

UNKNOWN

Unknown — not enough evidence to call a runway

We don't know, and saying so beats guessing. No D-ATIS feed here — a voice ATIS/AWOS may exist; check the frequency. No ADS-B traffic data available. No weather observation available.

certainty: — evidence: NONE no tower now

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23 27% 4300 ft

5 27% 4300 ft

14 23% 1700 ft

32 23% 1700 ft

Why — evidence behind this answer

Runway 23

PRIOR runway length 4300 ft +0.09

Runway 5

PRIOR runway length 4300 ft +0.09

Runway 14

PRIOR runway length 1700 ft -0.09

Runway 32

PRIOR runway length 1700 ft -0.09

Sources consulted

source	status	note
D_ATIS	UNAVAILABLE	No D-ATIS at this field
METAR	UNAVAILABLE	No weather observation found
ADSB	UNAVAILABLE	No ADS-B track history here yet
NOTAM	OK
CIFP	NOT_CONFIGURED	Instrument procedures: phase 4

Recent operations

No operations observed in the last hour. (No ADS-B track history here yet)

Was this right?

79S field & runways

Fort Benton, Fort Benton, Montana. Field elevation 2869 ft. Non-towered (NON-ATCT). Magnetic variation 14.0°E on record, 11.3°E today.

The FAA's variation of record is the number this field was surveyed against; the second is where north points now, from WMM2025. It is moving 0.099°/year west — about 1° every 10 years — which is why runway numbers eventually stop matching their pavement.

Runway data from the FAA NASR 01 Oct 2026 cycle. Where NASR locates both thresholds, the true heading is the bearing between them rather than NASR's whole-degree alignment. Magnetic is that heading against *today's* declination from WMM2025, not the field's variation of record — so it can differ from the chart by the gap between the two shown above. The number painted on the runway is the one ATC uses.
Runway	True	Magnetic	Number	Length	Surface
14	151.8°	140.5°	matches rule gives runway 15 in ~46 yr	1,700 ft	DIRT
23	241.6°	230.3°	matches rule gives runway 24 in ~47 yr	4,300 ft	ASPH
32	331.8°	320.5°	matches rule gives runway 33 in ~46 yr	1,700 ft	DIRT
5	61.6°	50.3°	matches rule gives runway 6 in ~47 yr	4,300 ft	ASPH

Generated 09:12:25Z · auto-refreshes · JSON

79S ☆ Fort Benton