Masonry near the ground surface can be severely damaged by the effects of poor drainage and repeated freezing and thawing. When these damaged stones can no longer support the weight of the wall above them, they are replaced with stones of similar size, shape, color, and surface texture. Replacing a few eroded stones at the base of a wall will protect the upper second and third stories of the building.
Did You Know?
The earliest map of the Chaco region was drawn in 1778 by Spanish cartographer Bernardo de Miera y Pacheco. The map identified Chaco Canyon area as "Chaca." "Chaca" is believed to be the origin of both "Chacra" (a nearby mesa) and "Chaco." More...