Airports 501 to 550
Thorne Bay Seaplane Base
Mears Field Airport
North County Regional Fire Authority Heliport
Timberline Quarter Horse Farm Airport
Tumbler Ridge Airport
Tumbler Ridge, British Columbia, Canada — 549 km (296 nm) NE
Princeton Airport
Town of Princeton, British Columbia, Canada — 551 km (297 nm) ESE
Skagit Regional Health Arlington Specialty Clinic Heliport
Arlington Municipal Airport
General Hospital of Everett Heliport
Green Valley Airfield
Granite Falls, Washington, United States — 568 km (306 nm) SE