Pico Cao Grande on the island of Sao Tome, where Hugo's from, and directly south of where Ethan will be serving his mission, is 6,640 feet high on an island that is only 30 miles long and 20 miles wide.  That's practically straight up, right?  Jim, want to go climbing?

Discover Pico Cao Grande in Caue, São Tomé and Príncipe: Nature’s skyscraper launches out of the terrain with attitude.

Pico Cão Grande en Santo Tomé y Príncipe.

Maravillas del mundo - De 101 Lugares Increibles

Pico Cão Grande is a massive phonolithic rock monlith feet high) rising up vertically out of the rainforest on the West Africa island of São Tomé. The phallic-looking tower is often shrouded in mist.

Santo Tomé y Príncipe.- El Muni

The Pico Cão Grande is also called the Great Dog Peak actually a towering needle-shaped volcanic plug peak in São Tomé and Príncipe, in the south of São Tomé