Spring Hill Conservation Land encompasses 213 acres of preserved wildlife habitat and is a part of Acton's largest protected natural area, connecting with Camp Acton, Nashoba Brook, and Robbins Mill conservation lands to form over 400 contiguous acres. The main trail through the area is a yellow-blazed loop trail that spans 2.5 miles, offering mostly level terrain with some stony stretches. Watch out for slippery rocks, mud, and roots, which can be covered by leaves in the fall! Two blue-blazed secondary trails intersect the main loop, allowing for shorter circuits. Red-blazed connector trails link Spring Hill to adjacent conservation areas (namely Camp Acton and Nashoba Brook). The Bay Circuit Trail also traverses Spring Hill. It is marked by white blazes and BCT logos, connecting to Nashoba Brook Conservation Land. There are clusters of stone piles scattered in the area that believed to be of Native American origin, possibly serving ceremonial purposes. These are highlighted along the trails, with educational panels providing historical context. There are also old stone walls that date back to the colonial era. Visitors can access Spring Hill via entrances at the cul-de-sacs on Spring Hill Road and Jay Lane, with parking available.