Lightning Behind Chimney Rock, Colorado, 1989

Photograph by James L. Amos

Trails of lightning backlight Chimney Rock in southwest Colorado's San Juan National Forest. Home to ancestors of the Pueblo Indians more than 1,000 years ago, the area around Chimney Rock has been a designated archaeological area and national historic site since 1970.

—Photo shot on assignment for, but not published in, "Life and Times of William Henry Jackson: Photographing the Frontier," February 1989, National Geographic magazine

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