I initially thought that this was a typical hike on a well-maintained trail, until I cleared the trees into a magnificent meadow. The views were very pretty and led to the Sandy Spring for which the town is named. Despite some unsightly vandalism, the spring was very impressive.
We also were unable to find marker 9. Sounds like we walked passed it instead of turning, because there wasn't any signage. We did a white and orange look in the opposite direction of marker 9 as well. The actual Underground Railroad trail is not a loop. Overall a nice trail with lots of history.
A pleasant walk. Finding the trailhead from the parking lot was a minor problem - just need to head south down the driveway past the old barn, then hang a left onto the grassy area between the horse fence and the wooded area. Previous reviews are correct in noting that signage between #8 and #9 is not so good. Just follow the gravel path and hang a right along the tree line.