Fundamental Benchmark

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Longhorsley


Northumberland

  • Description

    "These Ordnance Survey benchmarks, of which there are only 200 in the UK, are the cornerstones of the countrywide height measurement network, the mean sea level reference point being the Newlyn Datum in Cornwall. Unlike the more familiar trig points, they are still in use and are regularly checked. The concrete block is set on bedrock for stability. The height is specified as 124.0106 metres. Such precision! See closeup [[7005692]] For full details see https://www.bench-marks.org.uk/bm1108" Photo by Leanmeanmo, 2021.

  • Owner

    Leanmeanmo

  • Source

    Geograph (Geograph)

  • License

    What does this mean? Creative Commons License

  • Further information

    Link: http://www.geograph.org.uk/photo/7005374
    Resource type: Image
    Added by: Simon Cotterill
    Last modified: 3 years, 8 months ago
    Viewed: 663 times
    Picture Taken: 2021-10-29

  • Co-Curate tags

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Co-Curate is a project which brings together online collections, museums, universities, schools and community groups to make and re-make stories and images from North East England and Cumbria. Co-Curate is a trans-disciplinary project that will open up 'official' museum and 'un-officia'l co-created community-based collections and archives through innovative collaborative approaches using social media and open archives/data.

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