Carboniferous limestone outcrops in a ravine, Kaluzhskiy region, Russia

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Photo credit: © Photochur / Alamy / Afripics
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Keywords: clay, day, earth, environment, exit, fossils, geology, landscape, layer, limestone, loose, nature, outcrops, outdoor, paleontology, ravine, roots, scree, search, tree, trees, turf, view, white