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Cadair Idris and Llyn Tegid (Explorer Maps) OL23 (OS Explorer Map)
Cadair Idris and Llyn Tegid OL23 - Explorer Maps - OS Explorer Map Author:Ordnance Survey OS Explorer Map is the Ordnance Survey's most detailed map and is recommended for anyone enjoying outdoor activities like walking, horse riding and off-road cycling. Providing complete GB coverage the series details essential information such as youth hostels, pubs and visitor information as well as rights of way, permissive paths and bridleways.