Airports 501 to 550
Discovery Island Lightstation Helipad
Discovery Island, British Columbia, Canada — 197 km (106 nm) NNE
North County Regional Fire Authority Heliport
Siletz Bay State Airport
Whidbey Island Naval Air Station (Ault Field)
Spring Creek Ranch Airport
White Salmon, Washington, United States — 204 km (110 nm) ESE
Legacy Silverton Medical Center Heliport
Arlington Municipal Airport
Port Elsner Airport
White Salmon, Washington, United States — 205 km (111 nm) ESE
Burden Field-(Rabbit Run) Airport
Friday Harbor, Washington, United States — 206 km (111 nm) NNE
Green Valley Airfield
Granite Falls, Washington, United States — 206 km (111 nm) NE
Salem-Willamette Valley Airport/McNary Field
Independence State Airport
San Juan Point (Coast Guard) Heliport
San Juan Point, British Columbia, Canada — 209 km (113 nm) NNW