Indian Mountain LRRS Airport (IATA: UTO, ICAO: PAIM, FAA LID: UTO) is a military airstrip located south of Utopia Creek, in the Yukon–Koyukuk Census Area of the U.S. state of Alaska.

Indian Mountain Airport is a United States Air Force military airstrip.

Its mission is to provide access to the Indian Mountain Long Range Radar Station for servicing and other requirements.

With the manned radar station's closure in 1983, the airstrip now provides access to the unattended site for maintenance personnel and other requirements.

[2] Indian Mountain LRRS has one runway designated 6/24 with a gravel surface measuring 4,196 by 148 feet (1,279 x 45 m).