Here is information about Sheet 149: One Inch Sheet 149 South Merioneth 1903 – published 2002; intro by Alan Leather. ISBN.978-1-84151-367-6This Inch to the Mile map covers the southern part of Merioneth, with coverage stretching from the coast eastward to Machynlleth and Llanwrin, and from Barmouth and Dolgellau southward to Tywyn. Cader Idris is a dominant feature on the map, and other natural features include part of the Dovey Valley, Tal-y-llyn Lake, and the Afon Mawddach. Railways creep up several of the valleys, including the Tal-y-Llyn Railway and the Corris Railway. On the reverse we include a large extract from Merioneth Sheet 42.08 showing Upper Corris in detail, including Abercorris Slate Quarry, Abercwmeiddaw Slate Quarry, and some of the narrow gauge mineral lines that served the area; the extract stretches eastward to Garnedd-wen and a station on the Corris Railway. It is not possible to list the many hamlets, farmsteads and other topographical features shown on these maps. However, you may find it useful if we list the towns and principal villages or church parishes that are included on this map. Links are given for those for which detailed large-scale maps are also available. Merioneth: Barmouth, Capel Arthog, Dolgelley or Dolgellau, Llangelynin, Llangryn, Llwyngwril, Pennal, Towyn or Tywyn.Montgomeryshire: Llanyrin, Machynlleth, Penegoes.