Tag Archives: section

Photographs: Nature, Photographs: Sierra Nevada

Patterned Cliff Face, Detail

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Patterned Cliff Face, Detail
A small section of shaded Sierra Nevada cliff reveals remarkable details of dikes, fractures, color, and stains

Patterned Cliff Face, Detail. © Copyright 2018 G Dan Mitchell – all rights reserved.

A small section of shaded Sierra Nevada cliff reveals remarkable details of dikes, fractures, color, and stains

Most often when I think of large rocky faces in the Sierra Nevada, the clean, smooth, and almost uniform faces of Yosemite granite come to mind — large expanses of nearly unbroken rock shaped by glaciers. However, when I get into the high country and the other areas of the range I am reminded that things aren’t quite so simple. In places you can find mountains cut through by giant dikes of non-granite rock, or you might encounter the remnants of more ancient layers that lay above the granite intrusions and today give us red, black and other colors of material.

Since I’m no geologist, I can’t explain the details of the face in this photograph, but I can share a few observations. It is the headwall of a high bowl that contains a subalpine lake, and the area does show signs of glaciation. The fact is gigantic, and this is just a small section. It is far from uniform, with mostly gray rock cut through by thick intrusions of lighter material, and the whole thing cracked and fractured. In many places the surface has been deeply stained as water has flowed or seeped across it.

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G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” is available from Heyday Books and Amazon.
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Photographs: Nature, Photographs: Sierra Nevada, Photographs: Yosemite

Patterns In Granite

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Patterns In Granite
Patterns in a section of Yosemite Valley granite

Patterns In Granite. © Copyright 2018 G Dan Mitchell – all rights reserved.

Patterns in a section of Yosemite Valley granite

Of all the things that characterize and define Yosemite, rock may be the most important. The Valley itself is lined with huge granite* forms in the shapes of domes and cliffs and more, carved by water, glaciers, and slow erosion. Wandering about the Valley one eventually becomes aware that the granite “moves,” and that giant chunks have fallen from the surrounding heights and sometimes managed to travel a good distance into the valley — a sobering thought. This rock continues into the high country, where some of the same features are found, along with others — the glacial “erratics” left behind as ice retreated, places were rivers flow across smooth rock, meadows dotted with boulders.

The character of granite on the large scale is hard to miss, but its character close up is also fascinating. Many years ago, for a few years, I was a bit of a rock climber. As a climber one gets “up close and intimate” with rock, learning (and remembering the tactile qualities) of the rock — smooth, straight cracks, rough, covered by lichen, disintegrating, marked by water, and more. That may explain why this little spot caught my attention. Quite a few stories are in this rock. It lies at the base of some very large cliffs, suggesting its source. It is covered by lichen, part of the reason for the color variations. Stained streaks produce vertical lines, and one odd section, which must be harder than the rest, angles up from left to right.

  • A geologist friend has pointed out to me in the past that “granite” is not a technically correct blanket description for the rock of Yosemite. I’m using the term in the casual and familiar sense. And for those who get this far, did you notice a compositional link to the recent redwing blackbird photograph? :-)

G Dan Mitchell is a California photographer and visual opportunist. His book, “California’s Fall Color: A Photographer’s Guide to Autumn in the Sierra” is available from Heyday Books and Amazon.
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All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.

Photographs: Nature, Photographs: Northern California, Photographs: Sierra Nevada, Photographs: Yosemite

Burned Forest, Yosemite Valley, Autumn

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Burned Forest, Yosemite Valley, Autumn
Burned Forest, Yosemite Valley, Autumn

Burned Forest, Yosemite Valley, Autumn. Yosemite National Park, California. October 31, 2010. © Copyright G Dan Mitchell – all rights reserved.

Evening light in a burned section of the forest on the floor of Yosemite Valley.

I’ve been sitting on this photograph for a while, so I figure I’ll post it now. I made it last fall – on Halloween, actually! – during a fall color trip to the Valley. Late on my final evening I finally stopped and walked out across the old terminal moraine that crosses the lower Valley not far upstream from Pohono Bridge. (When you drive into the Valley, the road splits, and before long you’ll see the south end of this feature to your left as you go up a short climb.) I started at the north end and as I walked south looking for a photograph it was a very quite, still, and cold evening.

I finally found a spot where I could go down the lower side of the hill just a bit and find a relatively clear shot through the trees that wasn’t blocked by foliage closer to my position. This area has been burned, and I assume that it is the result of one of the management burns that often occur late in the season. These fires attempt to strengthen the forest by reintroducing the natural process and cycles of fire. The result is interesting charring patterns along the lower portions of the trees, temporary burned undergrowth, and then as the recovery takes place a much more open and airy sort of forest as you see in this photograph.

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Text, photographs, and other media are © Copyright G Dan Mitchell (or others when indicated) and are not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.

Photographs: Death Valley, Photographs: Desert, Photographs: Nature, Photographs: Southern California

Titus Canyon Road

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Titus Canyon Road
Titus Canyon Road

Titus Canyon Road. Death Valley National Park, California. March 28, 2010. © Copyright G Dan Mitchell – all rights reserved.

I made this photograph during midday hours after walking a ways up into the canyon from its mouth – the alternative to making the very long drive over the Grapevine Mountains from Amargosa Valley. (I have done the latter a few times, too.) While most Death Valley subjects tend to be appealing in the early morning or in the evening, many of the canyons can be at their best during the middle of the day, especially the very deep and narrow canyons like lower Titus Canyon. Here the canyon narrows down to the point that there is only room of a single gravel track, and twists and turns around rocky outcroppings. The light striking the upper canyon walls – out of the range of this photograph – reflects down into the canyon and produces soft, diffused illumination.

This photograph is not in the public domain and may not be used on websites, blogs, or in other media without advance permission from G Dan Mitchell.

G Dan Mitchell Photography
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