For the first photo, I'm standing between the first switchback and the first large outcrop of quartzite (next photo). The first switchback is at Location 1. Locations 1 through 8 are identified in the final Google Earth image at the bottom of the post.
|View from higher on the hill, looking across the canyon.|
|We wander past more quartzite, hoping to find our mysterious, unknown rock around the bend. Really. That's what we do on hikes.|
|Aha! A pale yellowish to light brown rock in contact with our darker, brownish gray quartzite! Right there in the road!!|
|It's a dike rock!|
|Now I'm standing on the dike above the drill pad [Location 4] from a day or two ago, looking south across Water Canyon [Location 8]. A fuller explanation of what we're looking at can be read here, with contacts drawn in.|
|Here's the view from the quartzite knobs [Location 5] seen in the last photo, looking east up Water Canyon and across the same field of dikes and quartzite outcrops [toward Locations 3 and 4].|
|Most of the exposures in this photo, saving ones in the foreground and a few on the far left and right (and on hills in the far distance), are of rhyolite porphyry.|
Having reached our hiking and geologizing goals, we'll now head back down the hill.
|From the middle of the hill, we look down toward Water Canyon across a few bouldery outcrops of orange-brown porphyry and dark gray quartzite [at about Location 7], with more massive exposures of quartzite lower on the hill.|
|Now we've arrived back at the first switchback [Location 1], and I realize the outcrops below it are made of porphyry.|
|Looking back to the north from just across the canyon.|
(This photo is from a hike on a more recent day).
The contacts don't seem so screwy when you know what's going on!
|Google Earth image of our area, with north to the right.|
|Numbers of locations referenced in the post.|