One of the best single track trails in terms of scenery is Spruce Railroad Trail in Olympic National Park, a legal, absolutely mesmerizing single track that's perfect for mountain biking. The book offers road rides, too. Sometimes we have visions of national park roads as being twisty steep mountain roads where you don't want to ride a bike. But that's not always true. In terms of exploring and feeling what the landscape is about, there's nothing like the bike.
Story raves about North Cascades National Park.
The road riding is amazing. And the rides in there from Lake Chelan towards the North Cascades National Park complex is one of the most unique experiences to have. You get there by boat. You ride on a road under a waterfall and by all these camps and alongside a scenic river and into totally wild territory. The jaggedness of the mountains rivals anything in Europe.