| BLM National Home Page: The Bureau of Land Management administers 264 million acres of public lands, located primarily in the 12 Western States, containing natural, historical, cultural, recreational, and economic resources. |
| CORS Data: Surveyors, GIS/LIS professionals, engineers, scientists, and others can apply CORS data to position points at which GPS data have been collected. The CORS system enables positioning accuracies that approach a few centimeters relative to the National Spatial Reference System, both horizontally and vertically. |
| Federal Geographic Data Committee: Coordinates the development of the National Spatial Data Infrastructure (NSDI), which encompasses policies, standards, and procedures for organizations to cooperatively produce and share geographic data. |
| FGCS Federal Geodetic Control Subcommittee: Exercises government leadership in coordinating the planning and execution of geodetic surveys, in developing standards and specifications, and the exchange of survey data and technical information. |
| Florida Geomatics: Outlines programs and national, state and local resource links for land surveyors. |
| Geomatics Canada: Responsible for delivering the federal government's geomatics activities and fostering growth in the Canadian geomatics industry |
| Geoscience Australia: The national agency for geoscience research and geospatial information. |
| Land Surveying and Geomatics: U.S. Federal: Discussion of U.S. Government resources for professional land surveyors. |
| National Geodetic Survey [NGS] - United States: |
| The United States Naval Observatory: |
| U.S. Geological Survey: The U.S. Geological Survey provides the Nation with reliable, impartial information to describe and understand the Earth. |
| www.resurvey.org: Privately supported site established as a reference for land surveyors working in the public land survey system. |
Classical
