The village is named after Obsidian, a glass rock that forms natural in the many volcanos scattered around Route XI. This small town is built in the middle of this massive desert, though they have a very powerful well that draws plenty of water for everyone. The shops and homes are built out of a strong wood, from a plant that grows beneath the ground, rather than above it.
The gym in this town is non-existant. The gym leader battles trainers in the sand, a few miles outside of town. The gym leader will guide trainers to the volcano and trainers must harvest their own obsidian. Then, the trainer must battle the gym leader. Once the trainer wins, the gym leader will carve into their obsidian and create their badge.