To see some detail on a map, we need at least the old 1" to the mile (now 1:50,000) maps, but maps at a smaller scale are also interesting. This is an extract from sheet 15 (Barmouth and Aberystwyth) of the Half-inch to 1 mile O.S. series, published in 1913. We also have a larger extract, covering the surrounding area, at 300 dpi.