Benchmark Airport is a public use facility located 19 miles west of Augusta, Lewis and Clark County, Montana. The Airport is in the Lewis and Clark National Forest. Its activation date was March 1965.

It covers an approximate area of 145 acres of land and has two runways with asphalt surfaces. Benchmark Airport only offers tiedown services. If you are looking for nearby holiday accommodation there are hotels within a couple of miles of the airport.

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