FALL COLORS DEPT.

Scrub oak acorns and sycamore leaves; Fremont Cottonwoods and arroyo willows; black walnut leaves screening a white-gold sky. Like the canyons on our side, Big and Little Tujunga, the canyons on the shady northern side of the San Gabriels have their own complex flora, geology, and history. All of these are well preserved at Placerita Canyon County Park, just over the Pass in Newhall.


I’ve hiked here before, and blogged about the ceanothus and buckthorns and the “Oak of the Golden Dream.” This time I only wanted some quick pictures of Walker’s “Fancy Rocks”‘ but I saw the main Canyon Trail was finally re-opened. Yowza! An unexpected marine layer was darkening the already darkling canyon floor; it was already 3:00 in the afternoon. But the air was bracing; so fresh and crisp you could bite it like an apple.



Epilobium canum, California fuchsia
We have Mr. Bob Muns to thank for a complete catalog of the Placerita Canyon Flora. Even a quick scan will indicate the rich variety, so I don’t have to. http://tchester.org/plants/muns/sgm/placerita_canyon.html
The geology in the canyon is also rich and complex, with San Gabriel Fault running through it. The “Placerita Canyon Formation” of metamorphic limestone-schist-quartzite yields the “Fancy Rocks” found in the creek and on the slopes. These were, and are, a highly valued signature of the local strain of Cal Vern Arch, as here at Walker’s Cabin (1920), the home of the family who donated the land for the Park. (The ranching Walkers had a side business of selling Fancy Rocks to builders, apparently at a nice premium over plain ol’ Tujunga or Arroyo riverstones).
An extremely rare (unique?) kind of “white petroleum” seeps up here, naturally distilled by its percolation through the Fault, so it bubbles out as nearly pure kerosene. Don Andres Pico may have been the first wildcatter in the 1860s, filling bottles to sell as lamp oil in LA. One of the wells had a 100 year record of profitable pumping. Small wells still pump on private lands adjacent to the Park.
In 1841 the first documented gold dust from California was panned here: “Before melting, 18 34-100 oz.; after melting, 18 1-100 oz.; fineness, 926-1000; value, $344.75; deduct expenses sending to Philadelphia and agency there, $4.02; net, $340.73.” The diggings continued to yield several thousands a year. In a future post we’ll trace how, on today’s date, November 22 in 1842, gold from this canyon was turned into hard dollars at the Mint in Philadelphia. The story illuminates how Alta California’s economy operated in practice. Here, from the SCV Historical Society, is the notice of its arrival in NYC:
Until I blog further on gold in the local geology, Impatient Reader, the Santa Clarita Valley Historical Society runs the best local history website I have ever seen in my life. You can delve into their Placerita Canyon page NOW, at whim, to explore the fascinating history of mineral extraction in Santa Clarita Valley: https://scvhistory.com/scvhistory/placerita.htm






Over a dozen turkey vultures circled over my head…hmmm…







Mule deer on the oak terrace



































































