Draughtsman: Dawson, Robert
Medium: Pen and ink on paper
This plan is indicative of the draughting convention of 'relative command', which indicates the relative height of the hills by numbers; Hill 3 being higher than Hill 2, for example. Brushwork interlining ('hachuring') and ink washes further depict relief. Archaeological details are documented, even though this did not become obligatory until 1816. An ancient 'leigh-line from Ross' is indicated at the centre left of the map. Part of the Hereford and Gloucester Canal is shown in aquamarine, with the draughtsman recording the individual locks, notably the section leading into Barbers Bridge.