Home to the ancient Pokémon known only as the Unown. Historians believe the ruins here are 1,500 years old and may have some connection to the ancient civilisation that they believe resided here many, many years ago.
As a narrow valley, wedged between the sea, Sevault Canyon has a mix of grassy patches and rugged, arid land. The canyon seems to serve as a training ground for elite Trainers, while being guarded by equally skilled Pokémon Rangers. Bruno used to train here before joining the Kanto Elite Four.
The tower can be found in the most northern location of Quest Island. It is similar to Battle Towers in that Trainers can be challenged in a variety of different battle types consecutively over a number of floors to reach the top; though the key concept of Trainer Tower is speed.