Torn clouds rolling over the lower slopes of Pike's Peak. |
A turbulent ocean of clouds roiling at the edge of a huge cliff below the summit of Pike's Peak. |
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Monument Arch with the majestic wilderness of Arches National Park |
Salt Flats near Salt Lake City |
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Tufa Towers at Mono Lake |
Tufa Rocket Plume |
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Tufa Dragon |
Obsidian at Mono Lake |
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Immense Mauna Kea, the greatest of the Hawaiian volcanoes, at sunset |
Steep and narrow ridge above Makaha Valley on Oahu |