Looking upwards at rocky cliffs near Dunnet head in northern Caithness, Scotland revealing the old red sandstone strata of the upper Devonian era

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Photo credit: © Richard Tadman / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: caledonian, coastal, deposits, devonian, distinctive, dunnet, era, eroded, exposed, formation, head, iron, marks, orogeny, oxide, pitted, red, ripple, rock, rocks, sandstone, sedimentary, strata, surfaces, upper, weathered