three peaks
Subtitle: Whernside, Ingleborough and Pen-y-ghent, showing part of National Park boundaryand Pennine Way.
Series: Outdoor leisure map
Publisher: Ordnance Survey
Published: 1977
Place of publication: Southampton
Language: eng
Notes: '... derived from six inch county series maps,... partially and selectively revised during the period 1938-1972. Selected revision 1977'.