Horizontal Section No. 121 (1878). Across Hertfordshire and Bedfordshire to near Kimbolton (continuation of sheet 120). Geological Survey of GB. 1st edition.

Horizontal Section No.  121 (1878). Across Hertfordshire and Bedfordshire to near Kimbolton (continuation of sheet 120). Geological Survey of GB. 1st edition. Located on Old Series one-inch maps 46ne & se, 47, 52ne and se.  Hand-coloured engraving, 69 x 103cm, 1:10,560 scale (6”= 1mile). Flat, linen-taped edges, slightly age-toned, clean. Coloured in 1923. In 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.