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Lewis & Clark
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Line
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1. Lewis & Clark Expedition Route
National Park Service. This vector follows the official route of Lewis & Clark and Corps of Discovery from 1804-1806. This historic trail extends 3,700 miles, crossing 11...
2. Portland Freeways
Metro Data Resource Center. Regional freeways derived from the arterial streets layer for the Metro region. Metro Data Resource Center.
3. Portland Major Arterials
Metro Data Resource Center. Major regional arterial streets derived from the streets layer for the Metro region. Metro Data Resource Center.