Thirty miles of the North Cascades Highway meanders through the upper Skagit watershed among forests and soaring peaks. A variety of activities can be accessed from the corridor including challenging day or backpacking hikes, paddling and other watersports. A number of scenic lookouts, campgrounds and short trails are available for those seeking a more relaxing trip.

Below Newhalem, the free-flowing portion of the Skagit River offers excellent wildlife viewing and rafting opportunities. A launch is located next to Goodell Creek Campground, but careful planning is required to float the swift Skagit as there can be seasonal hazards and closures.

Diablo Lake offers the only easy access for launching watercraft off of SR20. The lake, surrounded by glaciated peaks, is a brillant turquoise blue in summer. This unique color is caused by fine rock sediment called glacial flour, carried into the lake by glacier-fed streams. There are 3 boat-in campsites where a backcountry permit is required.

Ross Lake, the largest of the three reservoirs, winds nearly 25 miles from Ross Dam to Hozomeen on the Canadian border. The only vehicle access is via Hozomeen, but small motor boats (14' and under) and canoes/kayaks can be portaged around Ross Dam from Diablo Lake. Nineteen boat-in camps (backcountry permit required) and the Ross Lake Resort are available for those looking to spend multiple days in this remote landscape.

Top: Canoers on Ross Lake; Left: Thunder Creek; Above: Diablo Lake