The Marion Yarrow Preserve entrance is on Mt. Holly Road. Next to the small parking area there is a box containing maps. Loop trails, (yellow, red, white and blue) lead to Hidden Lake, a twenty foot waterfall and a wooded marshland. Trail length is 2 miles.

Level: Moderate

Directions: The preserve entrance is on the east side of Mount Holly Road .3 miles south of Todd Road & .3 miles north of the Holly Hill Lane intersection.