KMPI Mariposa-Yosemite

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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26 CLOSED 3305 ft

8 CLOSED 3305 ft · right traffic

Active NOTAMs affecting runways

RWY CLOSED RWY 8/26 until 11-01 23:59Z

RWY 08/26 CLSD TO TGL

Why — evidence behind this answer

Runway 26

NOTAM 26 not considered — closed by NOTAM until 2359Z 01 Nov

Runway 8

NOTAM 8 not considered — closed by NOTAM until 2359Z 01 Nov

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)

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KMPI field & runways

Mariposa-Yosemite, Mariposa, California. Field elevation 2254 ft. Non-towered (NON-ATCT). Magnetic variation 15.0°E on record, 12.4°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 0.087°/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
26	279.7°	267.4°	runway 27 by the rule today · 7.4° past	3,305 ft	ASPH	left	CLOSED
8	99.7°	87.4°	runway 9 by the rule today · 7.4° past	3,305 ft	ASPH	right	CLOSED

Generated 09:13:16Z · auto-refreshes · JSON

KMPI ☆ Mariposa-Yosemite