The state of Alabraska is about to be hit by an asteroid. Dayvon'te and Coltan ( The Asteroid Assassins ) are tasked to build an underground cavern to keep the people of Alabraska safe.
We finally decides that the best place to have our cavern was H5.
This location was the best for the cavern, because it would be built in sandstone, which is one if the best types of rock, it has waterways near it, railroads, and highways. It is also close to a major city, and is far away from a fault line.