In 1904, Mills president Susan Mills became interested in architect Julia Morgan because she wished to further the career of a female architect, and because Morgan, just beginning her career, charged less than her male counterparts.[111] Morgan designed six buildings for the Mills campus, including El Campanil, believed to be the first freestanding bell tower on a United States college campus.[111] El Campanil consists of 72 feet of reinforced concrete in a Spanish Mission-style and resides in front of Seminary Hall.[112] The bell tower has a low pitched red tile roof and seven arched openings for the ten bells.