Mount Ebott

"Legends say that those who climb the mountain never return."

- Undertale intro sequence

Mount Ebott is a mountain on the Surface of the Earth. It is the only known point of entry into the Underground, which is where The Undertale Locked Room happens. It is depicted at the beginning of Undertale's intro and in the True Pacifist Ending Credits before the "Special Thanks" section from the game. Eight Humans fell through the barrier on Mt. Ebott into the Underground.