Roppel Cave Map (1999) Downstream Hawkins River Lower Elysian Way Lower Elysian Way 2 Lower Elysian Way Canyon Lower Elysian Way Canyon 2 Mammoth Cave Shaft Caver by Stream Roppel Crawlway Roppel Passage With Formations Tube Passage in Roppel Turner Avenue-like Passage The Watergate Yahoo Avenue Yahoo Avenue 2 Yahoo Avenue 3 Yahoo Avenue Stalactites