This commemorative rock, complete with engravings for the Napa College class of 1893, came from Napa College which merged with Pacific in 1896. In the photo below, the Class of 1895 pose with the rock. It was moved to Stockton in 1951. Since the 1960s, students have painted messages on the rock adding up to nearly two inches of paint.

St. Patrick's Day was the first known occasion on which the spirit rock in front of the engineering building was painted, acting as a type of Blarney Stone for students. Over the years, both Engineers' Rock and Senior Rock have been painted regularly, whether to promote a group or gathering on campus, as a way for students to speak their minds in support of or protest against a current event on or off campus, or just for fun.

Left: 1893 commemorative rock at Napa College, 1895

Right: Senior Rock, 2014

Thumbnail image: Senior Rock, 2023