Horizontal Section No. 35 (c1845). From Cwm-cywem, NE of Bala, over Cader Berwyn, the Breidden Hills, the Stiper Stones, Caer Caradoc, Wenlock Edge, Brown Clee Hill. Geological Survey of GB. 1stHorizontal Section No. 35 (n. d. c1845). From Cwm cywem, North east of Bala, over Cader Berwyn, the Breidden Hills, the Stiper Stones, Caer Caradoc, Wenlock Edge and the Brown Clee Hill. Geological Survey of GB. 1st edition. Located on Old Series one inch maps 74nw, sw & se, 60ne. Hand coloured engraving 69. 5 x 102 cm, 1: 10,560 scale (6= 1mile). Flat, linen taped edge, generally age toned, slightly soiled. Library stamp on back. In very good