Exploring Nature in the San Francisco Bay Area

Letter from the Publisher

As I write this on Thanksgiving weekend, I have many things to be grateful for. For example: On Thanksgiving morning, I watched a huge raft of cormorants take off from the surface of the Bay in front of Angel Island. But behind such moments and places of great beauty, several dark clouds are gathering.

A Life in Geologic Time

In the 1970s, mother and peace activist Doris Sloan was working a nonprofit desk job in a basement office in San Francisco when she got into a UC Extension Sierra field class and fell in love with geology. The rest, as they say, is history. Over the subsequent three decades spent teaching, writing, and leading field trips, Sloan has done more than anyone to make the complex geology of California and the Bay Area comprehensible and fun for those of us without PhDs.