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.

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.

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.

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.

Outlines programs and national, state and local resource links for land surveyors.

Responsible for delivering the federal government's geomatics activities and fostering growth in the Canadian geomatics industry

The national agency for geoscience research and geospatial information.

Discussion of U.S. Government resources for professional land surveyors.

The U.S. Geological Survey provides the Nation with reliable, impartial information to describe and understand the Earth.

Privately supported site established as a reference for land surveyors working in the public land survey system.