In Mexico, cantera (a Spanish word that means quarry) doubles as a commercial term to describe “Mexico’s marble,” mottled volcanic tuff found in approximately ten Mexican states. While tuff was used to build pre-Columbian sites like Mitla, Oaxaca, it is more characteristic of the civic and residential architecture of New Spain. In the recent past, since the 1970s, Mexicans living in the United States have engineered a market to bring cantera north that caters to a predominantly Mexican and Mexican American clientele. Along with the migration of stone, Mexican albañiles (builders) and artisanal stonemasons also migrate, transforming construction practices and artisanal knowledge across boundaries. This book is a material history of North America’s tuff networks that tracks the excavation, carving, distributing, installing, and commissioning of cantera stone over the last fifty years. Beginning with the geologic formation of Mexico’s volcanoes, the book moves from quarries in Huichapan to artisan towns in Jalisco to construction sites in Texas to migrant restaurants in California to tell a binational history of relationships interlocked by circulating stone, people, and ideas. Within this comparative frame, it is possible to explore what moving cantera means and for whom as well understand how building itself is one of the mechanisms through which marginalized individuals in both Mexico and the United States reposition themselves, staking claim to both places and futures.