North Cascades driving roads

1 road and 86 mapped miles. Pick a road to see its route, character and access notes.

The North Cascades Highway (SR 20) is the last major road built across Washington's Cascades — closed completely every winter, unlike Sherman Pass further east on the same highway.

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North Cascades Highway · SR 2086 mi · Medium speed · Difficulty 2/386 miles of State Route 20 from Marblemount to Winthrop, the last major road built across the Cascade Range in Washington (opened 1972) and the highest state highway pass crossing in the state at Washington Pass (5,477 ft). Old-growth forest, waterfalls and alpine scenery on a sustained mountain crossing rather than a short technical burst.

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