University of Arizona student John Ellinwood and Ann Snow, of Lennox, Mass., negotiate a ladder on a slippery, clay-covered ledge that drops sharply to an underground pool inside Peppersauce Cave in January, 1948. Located off the Mt Lemmon Control Road, the cave, between eight and 10 miles outside Oracle, Ariz., is limestone and is in the Santa Catalina Mountains. According to Wikipedia, the cave was made known to the local public in February 1948 by an article in Desert Magazine. However, it was already a well-explored cave when it was mentioned in an Arizona Daily Star story in January 1948. It is open to the public, has no guided tours and for the most part is relatively humid. It has a big room, a slide, a rabbit hole and a signing room.