Elevated view of a large excavation on the San Francisco State University campus, photographed from the roof of the university library. The site shows extensive grading and earth removal following the demolition of the Commons complex and nearby student organization huts in early 1973. Construction vehicles, including earthmoving equipment, are visible shaping the foundation area. This excavation marks the early phase of construction for the new Student Union, completed in 1975 and later named the Cesar Chavez Student Center in 1994.