One doesn’t expect to see them looming in the woods along the trails of a wildlife refuge. Long and low with rounded tops, they resemble ancient burial mounds or crypts. The back end of each curves down to the ground while the front has a flat concrete façade secured by a heavy iron door. A ventilation port projects from the top. Some of these structures face the trails while others stand in isolation among the trees These are concrete bunkers built by the United States Army in the woods of…
