National/Federal level sites of all countries
Sites 8
- U. S. Naval Observatory General information, FAQ, tour information, history, equipment information, inexpensive digital astro imaging, and instructions on constructing an 8 inch Dobsonian.
- National Geodetic Survey Provides information and products related to the definition and management of the National Spatial Reference System (NSRS) - the framework for latitude, longitude, height, scale, gravity, orientation and shoreline throughout the United States.
- 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.
- U.S. Geological Survey The U.S. Geological Survey provides the Nation with reliable, impartial information to describe and understand the Earth.
- Florida Geomatics Outlines programs and national, state and local resource links for land surveyors.
- 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.
- www.resurvey.org Privately supported site established as a reference for land surveyors working in the public land survey system.