Search results
Results From The WOW.Com Content Network
Primarily from the United States Government Printing Office Style Manual. [1] State names usually signify only parts of each listed state, unless otherwise indicated. Based on the BLM manual's 1973 publication date, and the reference to Clarke's Spheroid of 1866 in section 2-82, coordinates appear to be in the NAD27 datum.
Survey markers were often placed as part of triangulation surveys, measurement efforts that moved systematically across states or regions, establishing the angles and distances between various points. Such surveys laid the basis for map-making across the world. Geodetic survey markers were often set in groups.
This 1988 BLM map depicts the principal meridians and baselines used for surveying states (colored) in the Public Land Survey System. The Public Land Survey System (PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling.
The Public Land Survey System was not the first to define and implement a survey grid. A number of similar systems were established, often using terms like section and township but not necessarily in the same way. For example, the lands of the Holland Purchase in western New York were surveyed into a township grid before the PLSS was established.
In 1838, U.S. Navy Lieutenant George M. Bache, while attached to the Survey, suggested standardizing the markings of buoys and navigational markers ashore by painting those on the right when entering a harbor red and those on the left black; instituted by Lieutenant Commander John R. Goldsborough in 1847, the "red right return" system of ...
Interactive maps, databases and real-time graphics from The Huffington Post
Boundary markers have often been used to mark critical points [clarification needed] on political boundaries, i.e. those between countries, states or local administrations, but have also been used to mark out the limits of private landholdings, especially in areas where fences or walls are impractical or unnecessary. [citation needed]
Mortgage surveys: Like as-built surveys, mortgage surveys show property boundaries for an entire property that will be mortgaged. Floodplain surveys: These show flood hazard areas.