Lists the names of mountains, cliffs, valleys, rivers, streams and lakes in Snowdonia together with a four or six figure grid reference number for each one. It traces in English and Welsh the likely source of each name, giving its meaning in Welsh and an English translation. The height of each mountain is given in feet and metres and also its position in the 200 highest mountains in Wales. All in all here is a wealth of topographical and etymological information about the area.