I recovered many mortar ball fragments and musket balls from the site in the early 1980's as a teenager, mostly from the north east face towards the peak. One of my most exciting moments using the metal detector was finding an intact mortar ball complete with gunpowder inside, which I still have. Apparently it was not uncommon for the fuses to fall out from the mortars when fired. The 2 mortars used were Kohorn's.