Agencies Responsible For Benchmarks
Benchmarks are typically placed ("monumented") by a government agency or private survey firm, and many governments maintain a register of these marks so that the records are available to all. These records are usually in the form of a geographically searchable database (computer or map-based), with links to sketches, diagrams, photos of the marks, and any other technical details.
Government agencies that place and maintain records of benchmarks include:
- Canada
- Natural Resources Canada Geodetic Survey Division (History of the Geodetic Survey Division)
- France
- Institut Géographique National (IGN on Wiki FR)
- Italy
- Istituto Geografico Militare - Servizio Geodetico
- Japan
- Geographical Survey Institute (GSI)
- New Zealand
- Land Information New Zealand
- Spain
- Instituto Geográfico Nacional (IGN)
- United Kingdom
- Ordnance Survey
- United States
- The National Geodetic Survey (NGS; formerly U.S. Coast & Geodetic Survey)
- The United States Geological Survey (USGS)
- The United States Army Corps of Engineers (USACE)
Read more about this topic: Benchmark (surveying)
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