Also known as Highway 20, this classic scenic route first winds through the green pastures and woods of the upper Skagit Valley, the mountains looming in the distance. Beyond Concrete, a former cement-manufacturing town, the highway climbs into the mountains, passes the Ross and Diablo dams, and traverses Ross Lake National Recreation Area. Here several pull-outs offer great views of the lake and the surrounding snowcapped peaks. From June to September, the meadows are covered with wildflowers, and from late September through October, the mountain slopes flame with fall foliage. The pinnacle point of this stretch is 5,477-foot-high Washington Pass: look east, to where the road descends quickly into a series of hairpin curves between Early Winters Creek and the Methow Valley. Remember, this section of the highway is closed from roughly November to April, depending on snowfall, and sometimes closes temporarily during the busy summer season due to mudslides from storms. From the Methow Valley, Highway 153 takes the scenic route along the Methow River's apple, nectarine, and peach orchards to Pateros, on the Columbia River; from here, you can continue east to Grand Coulee or south to Lake Chelan.