Eryri o'r awyr
Subtitle: patrymau yn y tirlun
By: Peter Crew a Chris Musson.
Contributors: Musson, Chris.; Snowdonia National Park Authority.
Publisher: Snowdonia National Park Authority
Published: 1996
Place of publication: [Penrhyndeudraeth]
Language: wel
Number of pages: 56
Subjects: Snowdonia (Wales) -- Antiquities.; Snowdonia (Wales) -- History.
Notes: Teitl clawr = Cover title.