Rider 3 (Popscycle) was AWOL today, claiming he had to work. So, I motored south, solo. In Sutton, MA I came across this marker for the Boston Post Road. Thought it was pretty cool so here it is. There's a lot of information on-line about this subject so I'll mention only that it was a mail delivery route between New York City and Boston in the late 1600s through the 1700s. Markers like these were every couple of miles -- not sure how many remain.
Photo 1 of 2: here's the "front" of the marker.