Cascade River Road Professional Review and Guide
"Cascade River Road ascends a forested valley hewn by glaciers and long traveled by Indians, pioneers, explorers and miners. Today, this remote entrance to North Cascades National Park attracts visitors headed for Cascade Pass (5,384 feet) and views of waterfalls, alpine meadows, craggy peaks, glaciers and snowfields.
Its nearby namesake is a federally designated wild and scenic river. The first 7 miles are paved. The remainder is mostly maintained gravel and dirt. The hike to Cascade Pass, which climbs 1,800 feet, is considered moderate."