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OSNI Open Data - BenchMarks - Height
OSNI Benchmark data consists of point data giving the location of the points, along with the associated text which shows the height value. Bench marks are shown in metres above... -
OSNI Open Data - 10M DTM - Sheets 1-50
A Digital Terrain Model (DTM) is a digital file consisting of a grid of regularly spaced points of known height which, when used with other digital data such as maps or...