Tag Archives: small

Young Trees and Meadow, Tioga Pass

Young Trees and Meadow, Tioga Pass
Young Trees and Meadow, Tioga Pass

Young Trees and Meadow, Tioga Pass. Yosemite National Park, California. July 22, 2010. © Copyright G Dan Mitchell – all rights reserved.

Young trees grow along the edge of subalpine meadows at Tioga Pass, Yosemite National Park.

This meadow, right below Tioga Pass – which is among the trees in the saddle in the upper part of the photograph – is something of a magical spot in the Sierra. It is, of course, the highest point that you can drive to in the park, and it sits right on top of the crest of the Sierra Nevada. At just slightly less than 10,000′ of elevation it is verging on the true alpine zone. Because of elevation and location, it is only open for a few months each year between roughly the end of spring and generally some time in November. (For those of us who think of this as it looks in summer, it is sobering to remember that during the majority of the year it is a cold and snow-covered place.) Once you pass over Tioga you begin to descend into the very different world of the high deserts east of the crest. Yes, it still feels like the high country for a while, but within miles you are in hot dry places that are not at all like this alpine terrain.

Oddly, while a thin band of trees crosses the saddle at the pass, much of the area on either side is meadow. This section is on the “Yosemite side,” and is an extension of the many meadows along the Dana Fork of the Tuolumne River which drains this area around Mount Dana. As if to reinforce the idea that this is not as gentle a place as it may appear in the summer, parts of the meadow are filled with the bleached remains of trees struck down by avalanches from the ridge that is out of this photograph to the left. The trail to the summit Mt. Dana, of the second-highest peak of Yosemite (being a few feet shorter than Mt. Lyell), begins by crossing this meadow.

Although I drive over this pass with some frequency, I virtually always stop and get out of the car and look around for at least a moment. On this late-July visit I stayed more than a moment, spending a good portion of an afternoon wandering about the meadow and photographing these young trees, small streams and ponds, fallen trees, some of the more distant mountains, and much else.

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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.

Tree and Rocks, Lower Young Lake

Tree and Rocks, Lower Young Lake
Tree and Rocks, Lower Young Lake

Tree and Rocks, Lower Young Lake. Yosemite National Park, California. September 15, 2010. © Copyright G Dan Mitchell – all rights reserved.

A small tree growing on rocks near the shoreline of Lower Young Lake, Yosemite National Park, California.

I first saw this small tree growing in the cracks of rocks near the shore of the lake the morning before I made this photograph. At that time the tree looked interesting but the light was not so great. So visiting this tree again was on my agenda for the following morning and I got there a bit earlier. I made a number of exposures of this scene, and I’m still not certain which one(s) I think work the best – so there is a chance that one or more additional photographs of this subject may appear before too long.

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.

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Young Trees and Pond, Dana Meadows

Young Trees and Pond, Dana Meadows
Young Trees and Pond, Dana Meadows

Young Trees and Pond, Dana Meadows. Yosemite National Park, California. July 22, 2010. © Copyright G Dan Mitchell – all rights reserved.

Young lodgpole pines grow in front of a Dana Meadows pond as Mammoth Peak looms in the distance.

Late in July of this somewhat wet year, the portion of Dana Meadows that extends almost up to the top of Tioga Pass was still very green and a bit wet, with small streams flowing through it and seasonal tarns still full. Being careful to avoid the boggy spots, I wandered down in to this section of the meadow near where the old roadbed is still visible and found small ponds and young trees trying to infiltrate the meadow. Here the pond reflects clouds floating towards Mammoth Peak, the high point at the end of Kuna Crest, on the other side of which is found the Lyell fork of the Tuolumne River.

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.

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Experiment #2: A Hint

Here are the three source images:

The differences among them are obviously in the amount of noise that was added to the image. No noise was added to the first image – any noise there was in the original capture. 10% level “Uniform” noise was added to the second image in Photoshop. 20% “Uniform” noise was added to the third image in the same way.

The soft photograph was chosen to avoid masking the noise with a lot of other sharp detail – this image provides very smooth gradients from black to white, where noise is typically easier to detect. I also chose this image because it is nearly – but not quite – monochromatic. This meant that I could increase the effect of the noise by using color noise rather than limiting to monochromatic noise – and that the color noise would tend to be more visible against the nearly monochromatic background.

The original set of 6 jpgs includes two from each of the three versions shown here. For last-minute fun you could still visit the comment page and try to a) determine whether or not the differences are visible and b) which pairs of images are the least noisy, more noisy, and most noisy.

More information to come later this evening.