Fort Henry (Pennsylvania)
Fort Henry was a stockade fort built in early 1756 in Berks County, Pennsylvania, to protect local settlers from Native American war parties, which were raiding the area frequently during the French and Indian War. It was one of the larger forts built in a defensive line, 12-20 miles apart, intended to safeguard the more densely populated communities of the eastern Province of Pennsylvania.
Source: Wikipedia — Fort Henry (Pennsylvania) (CC BY-SA 4.0)