The annual football game between Cal and Stanford is called The Big Game and is one of college football's greatest rivalries. If there is one symbol of the Big Game, it would have to be The Stanford Axe, which has a very long but interesting history. The football game itself has had some very interesting and exciting games.
The game itself is only a small part of a week of activities. During this week, people pull off various pranks, and students and alumni of both schools trade jibes (a favorite among Cal fans is to bash Stanford's nickname).
For a different perspective, visit a couple of sites hosted by the "enemy" -- The Stanfurd "Band" and The Stanfurd Axe Committee.