Best done in three days, this 19.6-mile leg traces ridgelines, drops into deep-cut notches, and offers breathtaking views of nearby mountains.

The lofty goal on this 23.5-miler--more than half of which runs above treeline--is Mount Washington, the most notorious and highest peak in New Hampshire. On bluebird days, views stretch for 100-plus miles. Tip: Check the forecast before you go; weather blows in fast.

Climb more than 3,300 feet on this adventurous dayhike up Mount Moosilauke, a 4,802-foot bald with airy views of the White Mountains and New Hampshire.

Hike 4.6 miles up the quieter, less-traveled west side on one of the mountain's oldest trails, alternating between forested scrambles, old streambeds, and exposed rock ledges.

Navigate boulder fields, rocky ridgelines, and seasonal snowfields during this long, challenging ascent of the third-highest peak in the Tetons.

Ditch the roadside crowds on this family-friendly, 4.1-mile out-and-back to an indigo lake framed by the mighty Tetons. Bring binocs: Songbirds abound.

This gentle 4.8-mile climb strings through the thick woods of Pawtuckaway State Park to a fire tower lookout with four-star mountaintop views.

Climb nearly 4,000 vertical feet, scramble up rock ledges, explore a gorge, and summit two mountains on this 8.3-mile White Mountain adventure.

This 7.3-mile loop hike takes you up a steep, rocky trail to an exposed, treeless summit that's the southwesternmost high peak in the White Mountains, and one of the prettiest.

Gaze down the barrel of a waterfall and visit a secluded pond on this 10.2-mile section hike of the Appalachian Trail.