The Mountain of Many Mysteries is featured in the Fraggle Rock storybook The Cave of the Lost Fraggle. Red has been dared by Gobo to explore the Cave of the Lost Fraggle after losing in a game of "Last One In" at the Fraggle Pond. The Mountain was one of the many obstacles Red faced on her journey, and it is located after the River of the Raging Rapids and before the Marsh of the Mushy Mushrooms.