2 Best Sights in Washington Cascade Mountains and Valleys, Washington

Highway 11, also known as Chuckanut Drive, was once the only highway accessing Bellingham from the south. The drive begins in Fairhaven, reaches the flat farmlands of the Samish Valley near the village of Bow, and joins up with Interstate 5 at Burlington, in Skagit County. The full loop can be made in a couple of hours, but the many notable eateries along the route, especially around Bow—home to the Bow-Edison Food Trail—may tempt you to linger. For a dozen miles this 23-mile road winds along the cliffs above beautiful Chuckanut and Samish bays. It twists its way past the sandstone face of Chuckanut Mountain and crosses creeks with waterfalls; look for lively oyster bars here,too. Turnouts are framed by madrona trees and pines and offer views of the San Juan Islands. Bald eagles cruise along the cliffs or hang out on top of tall firs. Drive carefully: the cliffs are so steep in places that closures resulting from rock slides occasionally occur in winter.

Officially known as Highway 504, this winding road rises 4,000 feet from the town of Castle Rock (just off I–5, Exit 49) to within about 5 miles of the Mt. St. Helens summit. Several visitor centers explain the region's geology and geography, and several turnouts afford views of the destruction wrought upon the Toutle and Cowlitz river valleys.