Horizontal Section No. 85 (1871). 1. Hameldon Hill across the Ribble Valley, to R. Hodder in Forest of Bowland. 2. From Black Hameldon through Burnley to R. Hodder at Slaidburn, Yorkshire. Geological Survey of GB. 1stHorizontal Section No. 85 (1871). 1. 1. From Hameldon Hill across the Burnley Basin and the Ribble Valley, to the R. Hodder in the Forest of Bowland. 2. From Black Hameldon through Cliveger and Burnley, and across Pendle and the R. Ribble to the R. Hodder at Slaidburn, Yorkshire. Geological Survey of GB. 1st edition. Located on Old Series one inch maps 88nw, 89ne, 91se, 92nw & sw. Hand coloured engraving 69. 5 x102. 5cm, 1: 10,560 scale (6= 1mile).