On September 2, 2000, Walt Hamm, John Mathers and Fred Grady went into Billy Clay Pit to examine various bones in the cave. The most significant find was a partial porcupine Erethizon dorsatum skeleton at the bottom of the handline drop. One lower jaw and several limb bones were collected. The upper part of the cave was then searched and there were various partial deer skeletons and one very large deer antler. There was part of a larger jaw that was collected and has been determined to most likely be cow. 

Unfortunately it is almost impossible to separate cow and bison without skulls. Porcupines were present in West Virginia until the early part of the 20th century. The cutting of virtually all of the old growth forest seems the most likely cause for their demise from the state. The porcupine remains will be deposited in the Department of Paleontology collections, National Museum of Natural History, Smithsonian Institution where they will be available for study by qualified researchers.