Chargestone Cave

7 Pokémon can be caught at Chargestone Cave in Unova — highlighted on the map below.

Chargestone Cave links Route 6 to Mistralton City in western Unova and is suffused with an unusual magnetic field. Thanks to that magnetism, a Magneton leveled up inside becomes Magnezone, and Nosepass likewise becomes Probopass; and it also underpins the cave's puzzle, in which floating stone fragments must be pushed toward larger magnetic rocks to clear the way. A Galvantula web initially seals the entrance in Black and White until Clay removes it with his Krokorok after his Gym is beaten.