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Situated in the heart of Pasadena at the foot of the San Gabriel Mountains, Caltech's 124-acre campus is 10 miles northeast of downtown Los Angeles.

The GPS Division is housed in four buildings on campus: Arms (building 25 on the campus map (PDF)), Linde + Robinson (building 24), North Mudd (building 23), and South Mudd (building 21). The division's administrative offices are on the first floor of Arms; faculty offices, laboratories, and classrooms are spread throughout all four buildings.


California Institute of Technology
Division of Geological and Planetary Sciences
MC 170-25
1200 E. California Blvd.
Pasadena, CA 91125

(626) 395-6123


Campus Map (PDF)
Parking Map (PDF)
Caltech Interactive Map


Both the Caltech and JPL campuses are readily accessible by car, shuttle, bike, and public transit.


Caltech campus visitors may park in any commuter (unreserved) stall on campus with a daily or weekly permit. Visitor permits are required for all campus lots between the hours of 7 a.m. and 5 p.m., Monday through Friday, and may be purchased at automated pay stations within the lots. View the campus map for parking locations. Parking and commuter services can provide information for electric vehicles, carpools, vanpools, Bike Lab, and the JPL shuttle as well as parking and commuting information.