From xzmattzx:
Hidden in a subdivision is a little bit of railroad history. The New Castle & Frenchtown Railroad was chartered in 1829 and began operating in 1832. The railroad connected New Castle to Frenchtown, Maryland, on the Chesapeake Bay. The western part of the railroad was abandoned in 1859, but the right-of-way remained cleared and functioned as buffers between parcels of land. Since railroad require flat ground, embankments were built for the railroad during construction, and some of these embankments still exist. Arguably the best remnant of the New Castle and Frenchtown Railroad is this embankment off of Forrestal Drive in Pencader Hundred. This view looks east along the embankment, with the natural contours of the earth seen on either side.