This is a presentation given on Cal Day (UC-Berkeley open house) on April 21, 2007. Speaker is George Brimhall, professor of Geology at UC-Berkeley.
Abstract: The Berkeley-Oakland hills harbor an archive of geological history, going back more than 100 million years. A vivid record also tells us much about the geological processes active today. Enjoy a pictorial history of the hills and hear how we reconstruct the past and predict the future, using such methods as digital mapping tools, base maps, global positioning systems, and lasers.
![[item image]](http://ia340915.us.archive.org/2/items/Cal_Day_2007_04_21_George_Brimhall/Cal_Day_2007_04_21_George_Brimhall.gif "[item image]")
![[help]](/images/question.gif "[help]")