Ordnance Survey Lower Order Bench Mark (Benchmark) and rivet located in concrete - Cartography, Mapmaking, height datum

---

Size: 6240px × 4160px
Location: Mid Wales, UK, England
Photo credit: © Martin Lewis / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: 1950s, 1960s, agency, altitude, bench, benchmark, benchmarks, bm, cartographer, cartography, concrete, convergence, data, datum, datums, england, geographic, georeferenced, geospatial, gps, grey, historic, information, leisure, level, lines, locator, man, map, mapmaking, mapping, marks, measurement, metal, national, order, ordnance, outdoor, pattern, perspective, planning, point, pre, rivet, scotland, sea, survey, surveying, technology, topographic, uk, wales