The legal description of a tract of land under the PLSS includes the name of the state, name of the county, township number, range number, section number, and portion of a section. land surveying under the Public Land Survey System (PLSS), a section is an area nominally one square mile (2.6 square kilometers), containing 640 acres (260 hectares), with 36 sections making up one survey township on a rectangular grid. The primary grid pattern is of quarter sections ( 1⁄ 2 mi × 1⁄ 2 mi (800 m × 800 m)). Satellite image of crops growing in Kansas, mainly using center pivot irrigation. Perfectly square 160-acre quarter sections of farmland cover Central Indiana. An online table shows PLSS Cadastral National Spatial Data Infrastructure (CadNSDI) data set availability.One square mile Sectioning a township (36 sections). Use the "Add Data" tool at the top of the map.įor GIS users, PLSS data layers are available through the BLM’s REST service endpoint. The National Map Viewer displays "BLM Public Land Survey System (PLSS)". US Topo maps published 2013-present have a Public Land Survey System layer that can be turned on and off. US Topo maps published 2009-2012 do not include any PLSS data. PLSS was created to divide parcels of public land it is not useful for the accurate location of points and should not be confused with coordinate systems like latitude/longitude, UTM, or the State Plane Coordinate System.įor states that have Public Land Surveys:Īlmost all historical topographic maps (1884-2006) include PLSS tic marks or gridlines. Sections can be further subdivided into quarter sections, quarter-quarter sections, or irregular government lots. Townships are subdivided into 36 one-mile-square sections. The PLSS typically divides land into 6-mile-square townships. PLSS surveys, which are available for portions of land in 30 southern and western states, are made by the Bureau of Land Management (BLM). The Public Land Survey System (PLSS) is a way of subdividing and describing land in the United States.
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