From the Nancy Pond traillhead off Route 302, hike up the Nancy Pond Trail for 2.4 miles until you reach the Nancy Cascades. From the parking lot to this area is roughly 1,500 feet elevation gain. From the cascades continue along the Nancy Pond Trail for 1.1 miles where you will reach Nancy Pond. That 1.1 mile stretch is pretty rough and steep. After the pond, continue on the Nancy Pond Trail for 0.8 miles until you come to the end of Norcross Pond. You will find yourself in a flat open area where the Nancy Pond Trail continues straight. Instead of going straight, the old trail that used to go up to Mount Nancy is on your hard right. Less than a minute into that old trail, you will see a fork. Take the fork left all the way to the summit of Nancy. For an unmaintained trail, it is easy to follow, with very little areas of thick brush. (also depends on the season). The trail is very steep and strenuous in areas but the views at the summit are worth it! You can see Mount Washington in the distance. The summit has a summit sign.