Continue on the yellow trail southeast back to the parking lot. The Great Swamp booklet talks about the Hammersley Ridge area. It includes north Quaker Hill, including the Tracy Road area and Purgatory Hill. The Pawling Nature Reserve harbors rare plants including devil's bit and yellow wild flax, as well as the rare rich sloping fen. Many of the west facing steep slopes of the Reserve, Deuel Hollow, and the surrounding area feature a northern microclimate that is dominated by black birch, yellow birch, and hemlock.
Upper elevations contain chestnut oak, mountain laurel and alder.