Map sheet number 159 in the OS Explorer series covers an area around Reading, including parts of the North Wessex Downs & Chilterns Areas of Outstanding Natural Beauty. The Thames Path National Trail runs across the top section of the map past Pangbourne & Reading, with the Blackwater Valley Path running alongside the Blackwater River near Eversley & Finchampstead. With this map you will receive a code for use on your i OS or Android smartphone or tablet. Find our more at Mobile Download FAQ. The OS Explorer map for Reading is available in both the standard paper version & weatherproof ' Active' version.