De Eyri = Snowdonia.
British Mountaineering Council.
British Geological Survey.
Harvey Map Services.
Doune : Harvey,
c2010.
Relief shown by contours, gradient tints, spot heights and symbols for major crags.
Title on cover panel: British mountain maps: De Eyri = Snowdonia South.
Published by Harvey in conjunction with the British Mountaineering Council and British Geological Survey.
On verso: Ancillary maps of Snowdon and Tryfan, maps showing geology and geomorphology of Snowdonia.
Includes extensive text on both sides giving practical advice for walkers.
Walking