WARREN /USFS/
WARREN, ID
Dirt runway surface defines 3U1 (Warren /Usfs/) in Warren, Idaho, a publicly owned, non-towered airport. The single runway, 12/30, measures 2,765 by 50 feet. No published instrument approaches exist, requiring visual flight rules for all operations. Pilots coordinate arrivals and departures on the common traffic advisory frequency (CTAF), 122.9 MHz. Field elevation is 5,902 feet above mean sea level.