This is out fifty-fourth in a series of caches meant to make Geocaching accessible to all. The parking is a little tight here so be careful. This road isn't very busy but vehicles can speed so be alert.
Rte 231 passes over the former Maine Central Railroad here. The rails follow the Royal River up to Danville, which is the junction with the former Grand Trunk Railroad connecting Portland with Sherbrooke and Montreal. MP = Milepost. See the milepost along the tracks just north of the bridge? So, what's 180 miles away?