Images of Exmoor 2012 Calendar. The historic national park of Exmoor in west Somerset and north Devon is named after the River Exe and measures some 267.5 square miles and was designated a National Park in 1954. Each month features 12 stunning landscape images produced by Adam Burton to take visitors and locals to the area through 2012 with stunning landscapes and images from this protected area. Each month features a full colour illustration with vertical calendar grid to the side containing pre-printed national holiday information.