Illilouette Fall is a 381-foot waterfall on the Illilouette Creek tributary of the Merced River in Yosemite National Park. It is located in a small canyon that cuts into the south wall of Yosemite Valley directly across from Vernal Fall. The origin and meaning of the waterfall's name has been lost to time.
Location: Yosemite Valley, Yosemite National Park, California, US