Logos

Graphic Arts maintains many versions of the Caltech logo on their site:

http://graphicarts.caltech.edu/caltech_logos.html

Right-Click on Images or filetypes belows and "Save Image as" or "Save Target as"

GPS Logo

Large TIFF PS JPG GIF

Tectonics Observatory (TO)

small jpeg

much larger JPEG

Seismo Lab

JPG EPS