11476 x 7754 px | 97,2 x 65,7 cm | 38,3 x 25,8 inches | 300dpi
Data acquisizione:
1832
Ubicazione:
Brecknockshire
Altre informazioni:
Questa immagine potrebbe avere delle imperfezioni perché è storica o di reportage.
Ordnance Survey sheet 42 [Brecknock, Llandulas, Devynock, Llywel, Hay, Talgarth, Glasbury, Llangorse, Dowlais, Penderyn, Llanfrynach, Llanfigan, Abergavenny, Crickhowel, Partricio, Tretower - Black Mountains and Golden Valley, Brecon Beacons and Black Mountains, South Wales Valleys, Wye and Usk Vales, Epynt Plateau and Valleys, Brecknockshire]. Artist/engraver/cartographer: Engraved at the Ordnance Map Office, Tower of London. Engraved by Benjamin Baker and assistants. Writing by Ebenezer Bourne. Hills by Richard Tovey. Published by Thomas Frederick Colby. . Provenance: Original Ordnance Survey one-inch per mile series. Contains public sector information licensed under the Open Government Licence v3.0. Crown copyright Ordnance Survey. Type: Antique folding hand coloured survey map, dissected and laid down on linen. The genesis of the Ordnance Survey's original one-inch per mile survey occurred in 1783 when the Royal Societies of Paris and London agreed to connect their two great cities by the use of triangulation to settle the dispute of their relative positions. This triangulation, completed by 1790, together with the outbreak of war with France in 1793, acted as a catalyst for the surveying of England. The survey began in Kent and by the end of the Napoleonic Wars in 1815 most of southern England had been mapped. By 1844, publication of the Old Series, one inch to one mile, was complete for the whole of Great Britain south of Preston and Hull. In spite of concerns about the cost of the survey, work continued until by 1870 the whole of England and Wales had been mapped.
