n his later years, Wright’s career, practice and reputation flourished, and he built the fourth Taliesin out of what he called “desert concrete,” a mixture of desert sand, rocks and concrete. Initially, life on the site near Phoenix, Arizona, was difficult—far from telephones and water, builders and campers had to dodge poisonous snakes and scorpions. But gradually, after building the structure and moving his family and fellowship there, Wright’s life became easier. He and Olgivanna spent only the winter months at Taliesin West and returned with the fellows to Taliesin East every spring and summer.