Butte Valley AirportButte Valley Airport is a county-owned public-use airport located five miles southwest of the central business district of Dorris, in Siskiyou County, California, United States.Facilities and aircraftButte Valley Airport covers an area of which contains one asphalt paved runway measuring 4,300 x 60 ft. For the 12-month period ending December 31, 2005, the airport had 2,000 general aviation aircraft operations, an average of 5 per day.