US-4021 in 20 seconds
Miller Flat Airport serves Whitethorn, US.
Miller Flat Airport (US-4021) in Whitethorn, US, is a private airstrip.
- It is located in the "Lost Coast" area, which is primarily Bureau of Land Management (BLM) land designated as Wilderness.
- Miller Flat is a private strip, and access is restricted.
- The airstrip serves landlocked private property owners in the area, who are permitted to use it for access.
- The property owners do not allow public access to the airstrip.
- Limited public information is available regarding specific runway details or extensive historical significance beyond its private use for accessing landlocked properties.
AirportRoutes · updated May 5, 2026
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Common questions about US-4021
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Where is Miller Flat Airport located?
Miller Flat Airport is located in Whitethorn, US. Its IATA code is — and ICAO code is US-4021.