56.7 MB (4.6 MB compressed)
5452 x 3635 pixels
46.2 x 30.7 cm ⏐ 18.2 x 12.1 in (300dpi)
DR JUERG ALEAN / SCIENCE PHOTO LIBRARY DR JUERG ALEAN / SCIENCE PHOTO LIBRARY
A field of drumlins, sounded deposits of morainic material by an ice-age glacier near Hirzel, Switzerland. Drumlins are formed many by debris deposited under a glacier and shaped by glacier flow. The go back to the late glacial maximum about 20'000 years before present.
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