Ancestral Pueblo builders used local adobe mud for walls and cottonwood, piñon pine, and juniper for most roofs. For the massive West Ruin, however, the people cut and carried ponderosa pine, spruce, Douglas fir, and aspen from mountains at least 20 miles to the north for the roofs, while masons cut and carried stone from quarries up to three miles away for its thick walls.

Aztec RuinsAncestral Pueblo structures