Koutetsu Town owes it's success to Brandon Steel, the Gym Leader. He made use of the land with his pokemon and began the steel industry. Mr. Steel, runs the town's day-to-day affairs and puts safety above turning a profit.
"We won't be digging under the town. The olds legends were right about that Steel Chamber. But we can't get it open yet. Besides, if we dig under the town we'll collapse. Minoru relies on us for our steel."
- Brandon on Koutetsu and the Steel Chamber Part 1.
A chamber made of thick, unnatural steel. It appears to be locked with no way of opening it. Legend says a Pokemon lies sealed in the Steel Chamber, awaiting it's master.
"...The Steel Chamber is shrouded in as much mystery as why Fogbound Lake's temperature is through the roof, or why the recesses of the Emerald Mountain are so cold. We don't know how it was made, but it's a sealed chamber holding the pokemon Registeel. It's too dangerous to wake up the Pokemon, it could destroy Koutetsu. I want to try and remove the chamber. Do you think it's possible?"
- Brandon, to Sora about moving The Steel Chamber.