Tag Archives: geology

Photographs: Abstract, Photographs: Imaginary Landscapes, Photographs: Nature, Photographs: Sierra Nevada, Photographs: Yosemite

Cliff Detail

February 27, 2017 G Dan Mitchell Leave a comment

A section of a Yosemite Valley cliff

I was in Yosemite Valley for the weekend, initially for the opening reception for the Yosemite Renaissance 32 exhibit in the Yosemite Museum Gallery next to the Visitor Center. Friday was all about the exhibit — the wonderful reception and then afterwards with my many friends among the artists in the show and others artists who have a connection to the event. This was also the seasonal peak of the annual Horsetail Fall excitement, a phenomenon that brings hordes of people to a couple of small areas… but consequently brings a degree of solitude and quiet to many other parts of the Valley.

In any case, my visit was also an excuse for photography. On my last morning there I was up an out in the 17 degree chill before sunrise. I headed to a nearby clear area from which I had an unobstructed view of some of the mighty cliffs. As I photographed I alternated between subjects that were typical landscape material — trees on ledges, morning light slanting across granite, snow and ice — and more abstract images focusing a sort of disembodied landscape and isolation striking bits of pattern and color high on the cliff walls.

All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.

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

Canyon Narrows

June 14, 2016 G Dan Mitchell Leave a comment

Twisting narrows in a desert canyon, Death Valley

On a late spring day of wind and sand storms in Death Valley National Park — and after several days of such conditions — we retreated to one of the deep and narrow desert canyons for an afternoon. After a short walk across the upper edges of a giant alluvial fan, we dropped into the lower reaches of the canyon and headed uphill. Soon the path entered the base of the range and the walls began to narrow, and the wide open world of the desert floor was invisible to us.

The canyons of Death Valley are in some ways similar to the more famous slot canyons of the Southwest. Both are formed by water coursing down narrow canyons, sometimes at high rates that rearrange the geography of the canyons significantly. But there are differences. Here the canyons are most often dry — a year round water supply in such Death Valley places is not typical. And the rock is not the familiar red sandstone of the Southwest, but here a more contorted and broken and often less colorful rock. But sections are very beautiful, and there is something very magical about this section of this canyon, as it narrows and passed between inward curving walls.

All media © Copyright G Dan Mitchell and others as indicated. Any use requires advance permission from G Dan Mitchell.

Photographs: Death Valley, Photographs: Desert, Photographs: Nature

Canyon, Contorted Formations

May 11, 2016 G Dan Mitchell Leave a comment

Contorted geologic formations along a narrow desert canyon

Almost inevitably, one’s first impression of Death Valley National Park is that of huge open desert spaces, with salt flats, occasional dunes, and vast alluvial fans surrounded by rugged and arid mountain ranges. These things are impressive — that scale of the landscape reminds me of visits to The Yukon and Alaska — and the fact that roads run though and past them helps make them seem central. But with time to explore a bit more, it becomes clear that there is more to the landscape than first meets the eye. Among these features are the uncounted canyons that thread their way into the mountain ranges.

We visited a few of them during this year’s spring visit to the park, including this one that we hiked into one afternoon. The terrain of these canyons is remarkable variable, ranging from shallow and open to very narrow with vertical walls. This spot fits somewhere in the middle — the walls here are indeed very high, but they tilt back a bit from the vertical and allow a bit more light down to the gravel wash at the bottom. This particular section especially impressed me with the wildly contorted layers revealed in the cliff above. This spot is near the bottom of one of the ranges in the “basin and range” geology of the area, and the old strata are twisted and folded in all directions.

Photographs: Nature, Photographs: The Southwest, Photographs: Utah

Waterpocket Fold Terrain

June 30, 2015 G Dan Mitchell Leave a comment

Deep erosion gullies below an uplifted rock band empty into the valley below, with rugged terrain extending into the distance

Until a few years ago, although I had heard the term “waterpocket fold” before, I was almost completely unaware of what this geological feature is. Since that time I have visited it several times. On the first occasion I visited the area, but I still did not understand the geology. I “got it” that there was some sort of uplift — the land rising to the west of Capitol Reef was a pretty good clue — but I did not understand or really see any of the connections. I recall stopping at one road side pullout and seeing a sign about it, registering that it is something important, but not really understanding.

On more recent visits the reality of this huge and striking feature has finally sunk in. I began to see it a few years ago on a trip that took we away from main roads and way up on a rocky ridge from which I could look down into the eastern valley and clearly see some of the larger patterns — sinuous lines of angled rock, the valley twisting gently into the distance in the south. On the most recent visit it began to make a lot more sense, as I noticed features like the shadowed cliff band across the center of this photograph, which more or less represents the remaining underside of a layer that long ago continued on up into what today would be the sky. Its edge overhangs the softer material below, though it still erodes into the bottom of the valley. Further to the east in this photograph the impossibly rugged terrain of arid strata continues, eventually rising to a mountain range in the far distance.

G Dan Mitchell Photography

Tag Archives: geology

Cliff Detail

Canyon Narrows

Canyon, Contorted Formations

Waterpocket Fold Terrain

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