With relatively few remaining original roofs, the tops of the walls are exposed to weathering, which ultimately causes severe erosion and collapse. The preservation staff caps each wall with several courses of stone set in a more weather-resistant mortar. This cap takes the brunt of the weathering, sheds snow and rain, and protects the original wall surfaces beneath.
Did You Know?
The ancient Puebloans traveled many miles to come to Chaco and brought supplies with them. Over half the pottery found at Chaco was made outside the canyon. More...