View from Brennisteinsalda ("Sulfur wave"), a volcano known for its many colors. The light colors are rhyolite, partly colored blue, red or orange by hydrothermal vents rich in sulphur and/or iron. The rhyolite is cracked into small stones, you don't find it as cliffs, the mountains are merely piles of gravel almost without fines. That is why the steep slopes all tend to be in exactly the same angle and the bottom of the valleys are flat riverbeds. The black rocks in the front are hard lava (often with obsidian), the grey is wheatered surface, and the ice blue pond is water. A few very green spots of vegetation can been seen, but for most of the area vegetation gets no foothold. Near Landmannalaugar, Iceland. Some footpaths can be seen, on the bottom to the left a part of the trail to the top of Brennisteinsalda is visible.
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