Andrew Alden earned his geology degree at the University of New Hampshire and moved back to the Bay Area to work at the U.S. Geological Survey for six years. He has written on geology for About.com since its founding in 1997. In 2007, he started the Oakland Geology blog, which won recognition as "Best of the East Bay" from the East Bay Express in 2010. In writing about geology in the Bay Area and surroundings, he hopes to share some of the useful and pleasurable insights that geologists give us—not just facts about the deep past, but an attitude that might be called the deep present.
Andrew Alden's Latest Posts
An hour of crowded freeway or a jaunt through granite, greenery and history? The choice is yours.
It takes a million years to make a land this big and flat. Take a few hours to experience it.
Don't be surprised, be delighted if your current or future romantic partner treats you to a day straight up on the rocks.
In the age-old war between Northern and Southern California, a change in the science has changed the politics.
There is no Bay Area peak more central than San Bruno Mountain, and it's remarkably unspoiled.
Enjoy a quiet canyon amid the noise, haste and rumpled rocks of the East Bay.
This brand-new national park will be the closest one to the Bay Area. Let's get to know it.
Test your knowledge with the second annual KQED QUEST Science Blogs Bay Area Geological Holiday Quiz.
The rare meteorite that fell in the Sierra foothills this spring yielded a rich harvest of scientific data.