2010
SD2879 : Ulverston Fundamental Benchmark
taken 15 years ago, near to Mansriggs, Cumbria, England
Ulverston Fundamental Benchmark
Fundamental benchmarks are located where they have a firm anchor to bedrock and these accurately surveyed height markers are still used by the Ordnance Survey, forming reference points for the Ordnance Survey National GPS Network.
The Ulverston Fundamental Benchmark marks a height of 95.5807m above sea level (Ordnance Datum Newlyn) last levelled and verified in 1952 (detail photograph
SD2879 : Ulverston Fundamental Benchmark).
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