I found this site where an abandoned military bunker is in Jonathan Dickinson State Park. These trails are on top of the old Camp Murphy WW2 Base where I found the bunker and other remains from the base.
During World War II, Camp Murphy, a top-secret radar training school, occupied the land that is now Jonathan Dickinson State Park. More than 1,000 buildings quickly sprang up from the scrub and more than 6,000 personnel were stationed at the camp, which had its own power plants, sewer system, church and theater. Very few locals had any real information about what was going on, only that a secret Army base had been constructed. Land had been quickly and summarily purchased or condemned and taken from landowners. After only two years of operation, in November 1944, Camp Murphy was deactivated and the whole operation was shut down.
