This 73-acre property is located on the right side of Old Stagecoach Road as you go up the hill, just 0.2 mile from its intersection with Briar Hill Road.

The nature trail begins off Old Stagecoach Road where a small sign and pull-out marks the trailhead. The trail enters a mixed forest before gradually descending to a tributary of Dolf Brook. The trail crosses a small drainage way and follows along the stream through a canopy of mature hemlocks.

Scattered throughout the preserve are massive boulders, several of which are visible from the trail. At approximately 0.4 miles, a small bridge crosses the stream and the trail climbs the slope, looping through an upland hardwood forest before descending back along the stream and returning to the point of beginning on Old Stagecoach Road.

The Sweatt Preserve was generously given to Five Rivers Conservation Trust in 2003 by Nancy N. Sweatt in loving memory of her husband, Robert A. Sweatt. Robert was a decorated veteran of World War II. During his many years in the service, he lived in various locations around the globe. His love for his boyhood town of Hopkinton and his land on Old Stagecoach Road never diminished. He and his wife were committed to preserving this land as a preserve for all to enjoy. The trail was built and maintained by volunteers from Five Rivers Conservation Trust.