Map No. 153, Bedford & Huntingdon, in the waterproof & tear-resistant OS Active version of the Ordnance Survey Landranger series at 1:50, 000, including Biggleswade, St. Neots, St. Ives, Godmanchester, Rounds, Irthingborough, Rushden, Grafham, Upper Dean, Kimbolton, Offord D