OS Explorer 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. Publisher: Ordnance Survey Author(s): Ordnance Survey Collection: OS Explorer Map Publication date: 2015 Dimensions: 225 x 147 x 12 Cover type: Sheet map, folded