GLASGOW to CAMPBELTOWN and SOUTHEND An 1898-published Series of Road Contours and Elevations The "Contour" Road Books founded an entirely new concept in mapping for, though there were numerous road maps by then in existence, there was the feeling that even the best of these did not convey much more than a general idea of the course of a road, road books, despite their detail, only giving a very vague indication of the real profile of roads Interestingly of the time and as a general rule, each county had its own set of milestones measured from its own centre and therefore, in a route, when only one starting point was named, it may generally be concluded that the milestones are all measured from that point, but where there were two named points, those nearest the county's boundaries, or in the centre of the county are usually incorrect as the route will have been measured from both ends.