The Kitum cave is found on Mount Elgon, an extinct shield volcano and the cave itself developed as the result of cooling volcanic rock. The cave which extends some 600 feet into the mountain has walls covered in salt. Each night, buffaloes, antelope, leopards, hyenas, and elephants tumble blindly through the cave in the dead of night to use it as a giant salt lick. As the elephants make their way through the salty walls of the cave, they scrape and pull off chunks of the walls to crush and lick up the salt using their massive tusks. Over the centuries this has resulted in a noticeable increase in the size of the cave and walls covered in tusk marks. The trip to the cave is not without dangers and there is a deep crevasse into which many younger, more inexperienced elephants have fallen leaving behind an elephant graveyard.