Car Travel

Highway 20, the North Cascades Highway, splits the park's north and south sections. The gravel Cascade River Road, which runs southeast from Marblemount, peels off Highway 20; Sibley Creek/Hidden Lake Road (USFS 1540) turns off Cascade River Road to the Cascade Pass trailhead. Thornton Creek Road is another rough four-wheel-drive track. For the Ross Lake area in the north, the unpaved Hozomeen Road (Silver–Skagit Road) provides access between Hope, British Columbia, and Silver Lake and Skagit Valley provincial parks. From Stehekin, the Stehekin Valley Road continues to High Bridge and Car Wash Falls—although seasonal floods may cause washouts. Note that roads are narrow and some are closed seasonally, many sights are off the beaten path, and the scenery is so spectacular that, once you're in it, you’ll want to make more than a day trip.