How to Construct a Canyon | Green Building and Design Magazine | CALS in the News |

Slot canyons—narrow, undulating passages through desert rock characterized by horizontal strata of petrified sediment cut by the flow of water over time—have inspired us in many great ways. Georgia O’Keeffe painted them. James Franco got caught in one (in the movie 127 Hours, a true life story). And now the University of Arizona (UA) is building something quite like one on its campus in downtown Tucson.