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  6. Driving directions from Portland to Alton Slough with distance

Distance Portland Alton Slough & driving directions from Portland to Alton Slough

Directions - route planner Portland, United States of America Alton Slough, United States of America distance

Portland, United States of America
Alton Slough, United States of America

Flight distance from Portland to Alton Slough

1,712.9 mi / 2,756.6 km