More recently, there have been two attempts at commercialization – in 1947 and in 1972 – neither venture lasted long, and today few traces remain. The 1972, the venture failed when Hurricane Agnes caused floods throughout the region; Tytoona, at that point called Indian River Caverns, was completely filled with water, and all the steps, railings, and pathways were washed away into the cave. The remains of this failure make up much of the logjam which lies in a bend in the cave, about 122 meters (400 feet) in.