Stark Mountain

Stark Mountain is a huge volcanic mountain, and is home to a lot of Fire-types, including the legendary Heatran. The mountain is a great training place and is full of double battles. The mountain consists of three rooms, the opening room, (no trainers, except for team galactic on first visit on platinum) the huge body room (full of trainers, mostly double battles) and Heatran's room (only smelly old team galactic again, on platinum). After your first visit, return to the Survival Area and talk to Buck (the red-haired dude who went with you through Stark Mountain). After that, head back to Heatran's room and catch this awesome Fire and Steel type pokemon.