3D image from USGS use glasses for 3D; anaglyph of Saguaro National Park at dusk; Kit Peak in the distance, behind Avra Valley. Numerous cacti present in the foreground.
U.S. Department of the Interior - U.S. Geological Survey - Geology Discipline
1 March 2003 (according to <a href="https://en.wikipedia.org/wiki/Exchangeable_image_file_format" class="extiw" title="en:Exchangeable image file format">Exif</a> data)
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