National/Federal level sites of all countries
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.
Outlines programs and national, state and local resource links for land surveyors.
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
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.
U. S. Naval Observatory
General information, FAQ, tour information, history, equipment information, inexpensive digital astro imaging, and instructions on constructing an 8 inch Dobsonian.
U.S. Geological Survey
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.
Last update:September 8, 2016 at 5:15:10 UTC