Full [Mapporn] Colorado River path changing at Hite Marina (Lake Powell). [454 x 654][GIF] Images from USGS.GIF 454×654 px
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Full [Mapporn] Geological Map of the Black Hills from 1879 - Henry Newton, E.M. for the USGS [6305x4363]Pict. 3153×2182 px★ 7096 pkt. ♥ 0 gefällt ⬇ 0 gespeichert
Full [Dataisbeautiful] USGS 8.0+ earthquakes since 1900, with the bubbles linearly proportional to the number of fatalitiesPict. 2000×2000 px★ 6240 pkt. ♥ 0 gefällt ⬇ 5 gespeichert