Airports 401 to 450
Whidbey Island Naval Air Station (Ault Field)
Oregon Health Sciences University Emerg Heliport
Portland Adventist Medical Center Heliport
Cle Elum Municipal Airport
Cascade Locks State Airport
Stark's Twin Oaks Airpark
Discovery Island Lightstation Helipad
Discovery Island, British Columbia, Canada — 167 km (90 nm) N
Barker Airport
Mount Vernon, Washington, United States — 167 km (90 nm) NNE