Coverage stretches from Staverton and Braunston eastward to Sywell and Great Billing, and from Cold Ashby and Maidwell southward to Nether Heyford. Northampton itself is near the foot of the map, and the only other town shown is Daventry.

Coverage stretches from Staverton and Braunston eastward to Sywell and Great Billing, and from Cold Ashby and Maidwell southward to Nether Heyford. Northampton itself is near the foot of the map, and the only other town shown is Daventry.