Tag Archives: geology

Stones and Pebbles

Stones and Pebbles
“Stones and Pebbles” — Colorful stones and pebbles washed up against coastal formations, Point Lobos.

The rocks in the center of this photograph are large enough that it is hard to believe that they were washed into this position by heavy winter surf along this section of the Pacific coastline. But that’s the fact of the matter. That surf erodes the underlying rocks, moves large rocks and even boulders around like toys, and deposits layers of multi-colored pebbles like those caught between these rocks and the underlying stratified formations.

Photographing at this cove at Point Lobos is always an invitation to slow down and just look. There are potential subjects everywhere, many of them rather small, but they are easily overlooked if you don’t adopt a very contemplative and quiet perspective. And because the area is right at the surf line and often overrun by high waves, I find something new and interesting every time I visit.


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, Amazon, and directly from G Dan Mitchell.

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Meandering Channels

Meandering Channels
“Meandering Channels” — Water flows across the salt playa through meandering channels in Death Valley.

Viewed up close from the valley floor, Death Valley is a mostly flat place blanked by tall mountains. But the details of its huge playa are largely invisible unless you travel off the paved roads and out into it. But even there, the flat terrain makes it difficult to fully understand the landforms. To do that you are better off heading to some place high above the valley and looking down into it from above.

I went one such place very early in the morning, and from there I watched the first rays of sunrise light strike the peaks of mountains across the valley, then work their way down to the valley itself. Eventually the shadows contracted and the full valley was in sun, revealing remarkable patterns of land, salt deposits, and meandering seasonal streams.


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, Amazon, and directly from G Dan Mitchell.

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Trona Pinnacles

Trona Pinnacles
“Trona Pinnacles” — Trona Pinnacles in early morning light.

Every time I visit Death Valley I pass close enough to these formations to see them standing in the distance, a striking sight in this otherwise flat valley where there was once a large lake. (They are tufa towers, formed when the area was submerged.) From time to time I detour to photograph them, but they have been a tough subject. I made this photograph on another of those detours, stopping between Ridgecrest and Death Valley before sunrise. The light proved to be challenging, but I had a few moments of lovely side-light shortly after sunrise.

The photograph is a liberal interpretation of the scene. Obviously, the subject is not really monochromatic, but I chose that route because it seems more dramatic. By the use of filters (here in software, but the effect is the same as we got in the old days with glass filters) I have accentuated the contrast in the sky to produce the effect that I had in mind when I photographed here.


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, Amazon, and directly from G Dan Mitchell.

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Death Valley on My Mind

Wash and Alluvial Fan
Morning light on a giant alluvial fan at the base of a desert mountain wash.

Wash and Alluvial Fan. © Copyright 2023 G Dan Mitchell.

Morning light on a gigantic alluvial fan at the base of desert mountains, Death Valley National Park.

This morning I am waking up in a place that is almost literally on the other side of the world from my “home country” of California. As I look out the window from a home in Kosovo toward high mountains at the start the day I am thinking about the storm impacting my state today, and the deserts regions such as Death Valley are especially on my mind as I read reports of tropical storm Hilary.

Our natural impression of places like Death Valley National Park (the part of California’s desert terrain that I know best) is of dryness, heat, aridity… of places where little grows and where challenges human visitors. It isn’t quite that simple, but there is truth to this. Our biggest concerns in such places are often the heat and the scarcity of water.

But I have long been impressed by the fact that there are few locations where the impact of water is more clearly visible than in the desert, especially in the rugged terrain of places like Death Valley. The valley was once a lake. Remnant water from that lake still appears and flows there. The tremendous mountains on either side of the valley were eroded and formed by water, and monumental alluvial fans flow out of side canyons everywhere. Deep watercourses cut through rock, and a close look at stones reveals that they were moved by water.

Even when we recognize the landscape-forming power of water, we still think of the landscape as now being static — formed by forces that worked in the past but now have left a stable geography. A few rocks fall, occasionally a wash overflows and takes out a small section of a road, a playa may fill temporarily with water… but soon everything is back to “normal” as it was.

But this morning it sounds like we may experience much more profound changes as Hilary sweeps though, the sort that occur at intervals measured centuries. Those of us who love this landscape may find our access cut off and that much changes after this storm. I’m both excited by and fearful of these effects — but in any case this is a powerful reminder of the scale of the forces at work in these places we love.


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, Amazon, and directly from G Dan Mitchell.

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