This site is privately supported reference providing information of interest to the land surveyor (also known as the Cadastral Surveyor) involved in the preservation and retracement of the Public Land Survey System (PLSS) in the United States. The term Cadastral, in the U.S., is most often associated with the Federal Land Surveying Authority. The PLSS is also known as the "rectangular system", and was a key factor in the orderly expansion west in the early history of the country.

*Cadastral is What? Cadastral is Where? The Manual of Surveying Instructions - 1973 info etc. updated 11/19/2001 2011 Solar and Polaris Surveyors Ephemeriiupdated 12/27/2011 Papers and miscellany...updated 8/11 EXCITE Search

Cadastral Survey*

• Performing legal boundary surveys for the Federal Government. This includes consultation and boundary determination expertise for USFS, Park Service, Corps of Engineers, BIA, Fish and Wildlife Service, Bureau of Reclamation, etc
• Steward of PLSS records for all active Public Land States, descendant from original General Land Office, or the GLO, the creators of the Public Land Survey System.
• A 215 year history of getting the job done and practical innovation.
• Currently maintains offices in Alaska, Arizona, California, Colorado, GCDB Denver, Eastern States, Idaho, Montana, Nevada, New Mexico, Oregon, Utah , Washington D.C. and Wyoming.
• Produces and maintains the primary land tenure records: the survey field notes and plats.
• Is a leader in developing spatial data as a basis for National Land Information System. This includes a large data collection efforts which is underway, known as the GCDB or Geographic Coordinate Data Base Project. This is the largest project in the world for development of records based geographic spatial framework.

The practice of finding boundaries is neither a purely legal process, nor a purely scientific process. It is something in between with a twist. The boundary surveyor in finding an old survey must be cognizant of the legal description of the land and any conflicts which may affect it. This involves not only knowledge but skills in research and investigation. Then the surveyor must be part archeologist to find physical evidence of previous surveys and occupation on the ground. Throughout the process the surveyor must understand the concepts of good measurements to find and describe what is found, and be able to interpret it's relationship to the record. In the end those that do it well find it can be rewarding and fun, sort of as mathematical detective work, with archeology, dendrology, geology and paralegal aspects thrown in. So we sometimes use the old saying "Land Surveying" is both an art and a science.