Slide Rock Bolter
The Slide Rock Bolter is a creature from Lumberjack Folklore which are said to be found in Colorado. They live in mountains on inclines of at least 45 degrees. They have large heads, small eyes, mouths like a sculpin (a kind of fish) and tails with two tail flippers shaped like hooks. They anchor themself at the top of mountains and wait for people to pass underneath. When this happens, they drool down the mountain and slide down this saliva to consume their prey. After is slides down, it uses its momentum to slide up the next mountain and latch itself on to repeat the process.
Citations:
Bane, Theresa. Encyclopedia of Beasts and Monsters in Myth, Legend and Folklore. United States, McFarland, Incorporated, Publishers, 2016.
Matthews, John, and Matthews, Caitlin. The Element Encyclopedia of Magical Creatures: The Ultimate A-Z of Fantastic Beings from Myth and Magic. United Kingdom, Harper Element, 2009.
Rose, Carol. Giants Monsters and Dragons: An Encyclopedia Of Folklore Legend And Myth. United Kingdom, WW Norton, 2001.