Sleeping on the San Andreas, Part Two

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In part one, I talked about the San Andreas Fault and how it worked to create the topography of the San Gabriel Mountains. In this part, I’m going to show you some of the signs of the fault’s activity in the Wrightwood area.

The day I arrived at the campground, I saw a bulletin that there would be a volunteer-led hike the next day exploring the San Andreas. Of course, I was thrilled!



Sleeping on the San Andreas, Part One

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I’m about to share a huge part of my childhood with you. When I was a kid, my family spent most weekends every summer camping in the Angeles National Forest near Wrightwood, CA. We also went up there in the winter to play in the snow. That’s the nice thing about living the Los Angeles area: you can drive a couple hours, play in the snow, and drive home where there is no snow.

We went on a lot of ranger-led hikes (something they don’t seem to do anymore, which I think is a huge loss) so I always knew that whole area was resting right on top of the San Andreas fault. I was familiar with the terms “fault flour” and “slickensides”, even if I couldn’t tell you precisely what a fault was. I just knew it was going to be the source of The Big One, something that lives uneasily in the backs of the minds of everyone who lives in California. More