Siskiyou County Airport is a public airport located three miles (4.8 km) northeast of Montague, serving Siskiyou County, California, United States. It has one runway and is mostly used for general aviation.

Siskiyou County is a county located in the northwestern part of the U.S. state of California. As of the 2020 census, the population was 44,076. Its county seat is Yreka and its highest point is Mount Shasta. It falls within the Cascadia bioregion.