Volcanic Adventure

I wish Minecraft had a volcano. I believe the volcano is composed of basalt deep rock and a lot of lava. I want a giant volcano, and it's tailored for Minecraft. It would be even better if monsters that only appear in volcanic structures appeared. It seems like it will be a volcanic adventure. The volcanic surface I envision contains coal, iron, copper, and other materials. This is my "volcano." That's an idea. Thank you for listening.