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SR 20 - North Cascades Highway - Maps

Avalanche zone location map (click to enlarge)SR 20, North Cascades Highway Avalanche Map

HIghway map with prominent locations and mileposts between the winter closure gates. 

Map with mileposts of the North Cascades Highway


State Route 20 stretches from Port Townsend on the west, to Newport on the east. The North Cascades Scenic Byway designation starts at Sedro Woolley and runs east over the Cascades to Twisp.
Map of SR 20 - North Cascades Highway