Tag Archives: slab

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

Evening Clouds, Tuolumne River Valley

November 25, 2011 G Dan Mitchell Leave a comment

Evening clouds from dissipating afternoon thunderstorms in early evening light above the Tuolumne River Valley, Yosemite National Park.

I recently posted a photograph of wildly colorful sunset clouds made a bit earlier on this same evening this past September as I was concluding a week-long photography backpack into the Yosemite back-country. By the time I had the photograph shown here, the most psychedelic of the sunset colors had begun to fade (though the reddish coloration on the granite is from that light) and I turned my attention to the thinning clouds.

Not much earlier, these clouds had been part of a massive line-up of huge thunderstorms over Yosemite high-country. I had escaped the rains since I was now in the relative lowlands around Glen Aulin, but it was clear that these had been some powerful localized storms. But as typically happens on many Sierra evenings, the giant storms soon dissipated and the clouds thinned to transparency as the day came to an end. By the time I made this photograph only a bit of direct sunlight was striking the tops of the highest remaining clouds.

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

Dissipating Storm Clouds, Sunset

November 24, 2011 G Dan Mitchell 1 Comment

Sunset light on dissipating thunderstom clouds above granite slabs, Yosemite National Park.

Late on this September afternoon in the Yosemite back-country I had a good idea that something might happen around sunset, but I could not have known in advance just how intense the cloud color would turn out to be. The set-up was classic. Thunder storms had built up throughout the afternoon, and by late in the day I would see and hear large storms to my north and east – though I remained right on the edge of the storm potential as I was a bit further west. As evening approached the cloud-building forces began to diminish, leaving the tops of the larger cells unsupported, and they began to thin and stretch westward, curving up and over my location along the Tuolumne River.

Knowing that interesting light of one sort or another was probable, I walked to an area of granite slabs and bowls that I had photographed when visiting this area at the start of my trip nearly a week earlier. As I considered a few photographs of the granite and trees in that area, my attention kept being drawn to the sky. At first it remained a relatively low contrast mass of gray, though the thinning clouds started to allow views through falling virga towards more distant clouds that rose into the sunlight. Then, as the sun dropped and the foreground lost the direct light, the clouds began to light up and take on wildly saturated colors. (A technical note: in many of the photographs, though not in this one, the dynamic range between cloud highlights and foreground was so large that it required multiple exposures separated by up to five stops to capture it all!)

I moved to the base of the granite bowl in which I had photographed rocks and small trees a week before when I saw these spectacular clouds building to the north west. The color was simply unbelievable – and you can see that the intense saturated light was not just in the sky, but that it also colored the granite near the bottom of the image. For this photograph I used a short focal length to try to take in a large section of the flowing and wildly shaped and colored clouds.

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

Trees and Granite Bowl

November 21, 2011 G Dan Mitchell Leave a comment

A variety of trees grow on a shallow layer of sandy soil in the middle of a large granite bowl, Yosemite National Park.

While the small, stunted and contorted trees that grow in impossibly small and barren cracks in the granite are amazing examples of how life can thrive with minimal support and against all odds, in some ways these groves of larger trees are at least as surprising. This group includes some very large and old specimens, yet they are growing in what cannot be much more than a foot or so of sandy soil washed down the surface of this glaciated granite slab – which elsewhere within its area supports nothing this extensive. In what must be the lowest part of the descending surface of the bowl, where perhaps more moisture is found and more sand and gravel transported, this “soil” – largely sand mixed with rocks and boulders – has collected and somehow these trees have managed to put down roots that allow them to grow and fill out a small grove.

I made the photograph in the very late afternoon as the sun was heading toward real evening light. The light is coming in at a low angle from the left and is just beginning to take on the warm coloration of evening. Because it was partly cloudy, I waited until the shadow from a thin cloud muted the light on the granite surface of the bowl in the background.

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

Stones, Stained Granite

November 19, 2011 G Dan Mitchell Leave a comment

Granite stones rest on glaciated slab of stained granite near the Tuolumne River, Yosemite National Park.

Scared you, didn’t I? Thought I was going to miss posting a daily photograph, right? Yeah, both of you… ;-)

In any case, I may have mentioned previously that I’m a sucker for Sierra granite, especially the glaciated kind that is found almost everywhere you go in Yosemite National Park, from the Valley to areas surrounding the very highest peaks. (Some of the highest peaks escaped the glaciation themselves, but that’s a longer story for another time.) For me, some combination of glaciated granite slabs, a few “erratic” boulders (“erratics” being boulders moved from their source and left behind by retreating glaciers), some trees, and a bit of meadow grass, perhaps with a stream or lake nearby shouts “Sierra Nevada.”

This photograph does not include all of these Sierra ingredients but it does include the granite. I photographed this small bit of granite slab along a section of the Tuolumne River than runs through the back-country during a week-long backpack trip this past September. Something about the arrangement and color of the four larger stones against the water-stained underlying rock with its complex textures interested me. A lot of what is in the frame may not be visible in the small jpg version posted here, but there is a lot of detail in the frame: the texture or rock, crystal structures on some of the stones, several smaller pebbles, even a bit of dried pine needle.

G Dan Mitchell Photography

Tag Archives: slab

Dissipating Storm Clouds, Sunset

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Trees and Granite Bowl

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Stones, Stained Granite

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Photographer and visual opportunist. Daily photos since 2005, plus articles, reviews, news, and ideas.

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Photographer and visual opportunist. Daily photos since 2005, plus articles, reviews, news, and ideas.