At the tops of many mountains and along numerous roads are small brass disks called benchmarks. These survey points map the ...

The British Geological Survey is responsible for advising the UK government on geoscience and providing impartial advice to industry, academia and the public.

You can order a copy of this work from Copies Direct. Copies Direct supplies reproductions of collection material for a fee. This service is offered by the National Library of Australia ...

You can order a copy of this work from Copies Direct. Copies Direct supplies reproductions of collection material for a fee. This service is offered by the National Library of Australia ...

The Meades Ranch Triangulation Station is a survey marker in Osborne County in the state of Kansas in the Midwestern United States. The marker was initially placed in 1891. From 1901, it was the ...

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For much of its 233-year history, the Ordnance Survey has been synonymous with detailed maps of the British countryside, beloved by ramblers and orienteers. But the UK’s national mapping agency ...

The Mini Washington is what’s called a “geodetic survey point,” a marker of which there are thousands, used by professionals across the country to help with surveying and mapmaking.