New Hampshire does not have a site with the official designation “National Park,” but it is home to two places managed by the National Park Service: Saint-Gaudens National Historical Park and the Appalachian National Scenic Trail. Saint-Gaudens preserves the home, studios, gardens, and artwork of one of America’s most influential sculptors. Farther north, approximately 160 miles of the Appalachian Trail cross New Hampshire, including some of the trail’s most rugged and spectacular mountain terrain. This guide covers both National Park Service sites in New Hampshire, including what to see, when to visit, entrance fees, suggested trip lengths, and how to incorporate them into a larger New England National Park road…