Skip to Main Content
It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.

Digital Exhibits: Last tree on Throop

Last tree on Throop

The wrecking crew removes the Christmas tree on top of Throop’s dome. Photo ID 40.4.2-11

The exterior of Throop Hall, completed in 1910 in mission style. Photo ID 40.4-25

The demolition of the Throop Hall and the Christmas tree falling with the building. Photo ID 40.4-40

For many years students used to perch a Christmas tree on top of Throop Hall, Caltech’s first building, which hosted labs and offices for the Engineering and Applied Sciences Division, as well as the campus administrative offices.

Following the February 1971 San Fernando earthquake, a magnitude 6.6 event, the building was deemed unsafe; and at the end of 1972, its demolition was imminent.

Nevertheless, the students put up their tree according to the tradition. On December 20 the wrecking crew removed it, but in the spirit of the season they put it back up again for the holiday weekend.

The last Christmas tree to adorn the cupola fell with the wreckage (see demolition photo). Later the wrecking company donated a full-grown tree for planting on the Throop site.