I had speaking engagements this past week with the Bakersfield Cactus & Succulent Society (Tuesday) and the San Gabriel Valley (Los Angeles) Cactus & Succulent Society (Thursday). My topic was Nature’s Geometry in Succulents. Both meetings were evening meetings, so I had a lot of daylight both days to go touring. Not to mention all day Wednesday between the two meetings.
I had created a list of places to visit and things to do, leaving at 4:53 a.m. on 2/11/20 for final destination Bakersfield. Google Maps said it would take me 3 hours and 50 minutes to drive from San Diego to Bakersfield. Ha! It took ten hours! TEN HOURS! In defense of Google Maps, though, I stopped here, there, and everywhere to take pictures, pictures which will provide lots of future blogs posts. First on my list was the….
San Andreas Fault
I always have been fascinated with the creation of the Earth, never believing that God was finished creating it. Ergo, earthquakes and volcanoes.
Several years ago I bought a book by David K. Lynch titled Field Guide to the San Andreas Fault. It has twelve driving tours to view anything and everything related to the San Andreas Fault. I took Trip #3 through the San Gabriel Mountains, San Bernardino to Palmdale.
The San Andreas Fault crosses the drive at many points, but the spot I was particularly interested in was one where the fault crosses the road diagonally and is marked on both sides of the road by signs.
Even though that spot was at the top of my San Andreas Fault list, I found two other spots that were far more interesting. The first was where the fault created a rift. On the right side of the rift was the North American Tectonic Plate, and on the left side was the Pacific Tectonic Plate. In the picture below, the train is traveling south on the North American Plate, and I’m on the highway traveling north on the Pacific Plate. How appropriate since the North American Plate also is moving south and the Pacific Plate is moving north. Long-time readers know how infatuated I am with trains, so this picture is my favorite of the fault.
As a former general contractor, Realtor, and home inspector (among other real estate ventures), I found the village of Wrightwood fascinating.
There are 4,500 people in Wrightwood living at about 6,000 feet elevation. All of the houses appeared to be constructed completely of wood: framing, siding, and roofs. The reason is because wood flexes, so earthquake damage won’t be near as massive as it would be with concrete, brick, and stucco buildings.
The fault runs directly through the village, creating offsets, sag ponds, and scarps. A sag pond is a body of fresh water collected in the lowest parts of a depression formed between two sides of a fault, mostly strike-slip faults. Sag ponds are quite common along the San Andreas Fault. Sag ponds have been converted into reservoirs for both livestock and public water resources. One of the sag ponds at Wrightwood had been turned into a community swimming pool.