Horizontal Section No. 87 (1873). From Bull Hill, Haslingden, to Morecambe Bay, across the Blackburn Coal- basin, and the Fylde of Lancashire. Geological Survey of GB. 1st edition.
Horizontal Section No. 87 (1873). From Bull Hill, Haslingden, to Morecambe Bay, across the Blackburn Coal- basin, and the Fylde of Lancashire. Geological Survey of GB. 1st edition. Located on Old Series one-inch maps 89ne, and 91ne & se. Hand coloured engraving 69.5 x 103cm, 1:10,560 scale (6”= 1mile). Flat, linen-taped edges, slightly age-toned. Library stamp on back. (coloured 1921). Clean. 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.