"The National Park Service manages more than 21,000 miles of hiking trails across 85 million acres of land. Yellowstone alone is home to more than 1,000 miles within its 2.2 million acres. Choosing the right trails is no easy task. The Dayhiker's Guide is here to help simplify hiking decisions. With 198 color trail maps, it details 280 of the best hiking trails in the United States. Distance and difficulty. Elevation and elevation gain. It’s all...