Mariposa-Yosemite Airport

Mariposa-Yosemite Airport is a public airport located four miles west of the central business district of Mariposa, in Mariposa County, California, United States. It is owned by the County of Mariposa.
Although most U.S. airports use the same three-letter location identifier for the FAA and IATA, Mariposa-Yosemite Airport is assigned MPI by the FAA and RMY by the IATA.

Facilities and aircraft

Mariposa-Yosemite Airport covers an area of which contains one asphalt paved runway measuring 3,306 x 60 ft.
For the 12-month period ending March 2, 2007, the Mariposa-Yosemite airport had 32,000 aircraft operations, an average of 87 per day: 94% general aviation and 6% air taxi. There are 52 aircraft based at this airport: 96% single engine, 2% multi-engine and 2% ultralight.
There is one FBO on the field, Airborrn Aviation Services.

During World War II, the airport was designated as Mariposa Air Force Auxiliary Field, and was an auxiliary training airfield for Merced Army Airfield, California.

In July 2022, five CH-54s were assigned to fighting the Washburn Fire, based at the Mariposa-Yosemite Airport.