Serpentine Barrens Loop

From the McPherson Lake trailhead, head east on the connector to access the Feldspar Trail. Turn right at this first intersection and continue south past the Doe Trail to cross a bridge before coming to the Mystery Hole historic quarry site, which has a fence around it. Continue past the old quarry site to meet up with the red-blazed Buck Trail, the longest trail in the park, and the only somewhat steep hill climb along this hike. Turn left onto the Buck Trail to continue south making sure to follow the red blazes, avoiding the firebreak trails that head to the boundary of the park. When in doubt, stay left at each intersection or keep an eye on the Mobile App for on-trail navigation. After crossing the Serpentine Savannah, just before the two-mile mark, look for the white-blazed Doe Trail to the left. This provides the final mile of trail to return to the Feldspar Trail and parking area.

Serpentine barrens refer to the type of rock (serpentine) found in only a few areas across North America and the area that it's located in (barrens), which is characterized by low nutrient levels in soil and as a result, varying or minimal plant growth. Many barrens are named after the predominant tree in the area like the well-known New Jersey Pine Barrens.