Horizontal Section No. 5 (1858) From the Black Mountain Range , SE of Glasbury, to Alltwen, near Aberystwyth. Geological Survey of GB. 2nd edition
Horizontal Section No.5 (1858) From the Black Mountain Range , SE of Glasbury, to Alltwen, near Aberystwyth. Geological Survey of GB. 2nd edition. Located on Old Series one-inch maps 42ne, 56, 57ne. Hand coloured engraving 69.5 x 103cm, 1:10,560 scale (6”= 1mile), flat. The sections continue on the next Horizontal Section, sheet no. 6. Soiled edges, right margin crumpled outside plate mark. Otherwise in good to very good condition.
About England & Wales Sections
These hand-coloured engraved ‘horizontal’ sections at six inch to one mile scale were published in the mid 19th century by the Geological Survey of England and Wales. The detailed profiles generally follow the geological dip on the one inch Old Series maps numbered in the upper right hand margin and the profile locations are shown on these maps which themselves did not include a section.