WSFO : State Location Directory

There are six highways crossing the Cascade Mountains or portions thereof. All receive snow during the winter months, but they remain open with the exceptions of the North Cascades and Chinook. Regardless, road conditions should always be checked ahead of time in the winter. These passes are:

Blewett
Chinook
North Cascades
Satus
Snoqualmie
Stevens
White

State Highway 97
State Highway 410
State Highway 20
State Highway 97
I-90
State Highway 2
State Highway 12

Open year-round. Closed in winter.
Closed in winter.
Open year-round.
Open year-round.
Open year-round.
Open year-round.