Bandelier National Monument
OK, think back to that volcanic ash scattering. Naturally, the vast majority of it wound up covering nearby territory, sometimes landing in drifts up to several hundred feet thick. When the ash settled and compacted, it became the soft volcanic rock known as tuffa, the very same material the Romans used as building blocks.
This material was soft enough that indigenous tribes were able to carve homes out of the rock. Bandelier National Monument is home to some fascinating cliff dwellings.
Tags: Albuquerque, Archives, jemez, mountains, photo, Travel