Historic opening and closing dates for chinook, cayuse and north cascades passes.

Click on the green and white mountain pass icon for the specific pass’s.

Map of all the mountain passes in washington state.

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Verkkomountain passes & winter travel.

Chinook pass sr 410.

Verkkomountain pass closure and opening dates.

4102 ft / 1250 m.

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Blewett pass us 97.

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