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Date: 2014-03-10 12:11:33Old Red Sandstone Black Mountains Wales Sedimentary rock Sandstone Geology of Monmouthshire Twmpa | OLD RED SANDSTONE OF THE BLACK MOUNTAINS Duncan Hawley and Geraint Owen View E over the Rhiangoll valley from near locality 8, the Allt Mawr ridge and the S flanks of the Black Mountains,Add to Reading ListSource URL: www.swga.org.ukDownload Document from Source WebsiteFile Size: 874,44 KBShare Document on Facebook |