Clay Tunnel

12 Pokémon can be caught at Clay Tunnel in Unova — highlighted on the map below.

Named in honor of Driftveil City's Gym Leader, Clay Tunnel exists solely in Black 2 and White 2, joining Driftveil City to Twist Mountain while also opening routes into Mistralton Cave and the Underground Ruins. The passage becomes available once the Hall of Fame has been entered. Workmen stationed inside operate mine carts that ferry travelers between the different sections of the cave network.