MT13 Ostlunds

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. Wind calm — no directional preference.

certainty: — evidence: NONE no tower now

Wind calm · VFR · 55 min old · from KBIL (7.9 nm away)

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11 50% 1807 ft

29 50% 1807 ft

Why — evidence behind this answer

Sources consulted

source	status	age	note
D_ATIS	UNAVAILABLE		No D-ATIS at this field
METAR	OK	55 min	Nearest station KBIL (7.9 nm away)
ADSB	OK	1 min	GOOD
NOTAM	OK
CIFP	NOT_CONFIGURED		Instrument procedures: phase 4

Recent operations

No operations observed in the last hour.

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MT13 field & runways

Ostlunds, Billings, Montana. Field elevation 3828 ft. Non-towered (NON-ATCT). Private use.

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 0.09°/year west — about 1° every 11 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	Pattern	Notes
11	113.1°	103.1°	runway 10 by the rule today · 6.9° past	1,807 ft	TURF
29	293.1°	283.1°	runway 28 by the rule today · 6.9° past	1,807 ft	TURF

Generated 13:48:15Z · auto-refreshes · JSON