Diglett's Cave is a long tunnel dug by wild Diglett and Dugtrio in Kanto. The northern entrance is on Route 2, south of Pewter City, and the southern entrance is on Route 11, near the eastern edge of Vermilion City. The passage is famous for connecting these two routes. Regardless of what Generation a Trainer encounters Diglett's Cave in, the Trainer must pass through the cave at one point or another, either to continue the storyline or to access the western Kanto cities of Pewter and Viridian, as well as Pallet Town.