Friday, December 3, 2010

PLSS

http://gis.nwcg.gov/giss_2006/job_aids/maps_and_graphics/USA_PLSS_Meridians_map.jpg
The Public Land Surveying System is much like a cadastral map in that it is used to legally define land parcels. It does so by separating them into townships and sections and often using a grid system based on a meridian like the one's displayed in this map. This  system of surveying was utilized later in the US' history which would explain why many of the original colonial states are not included as well as Texas as it was Mexican territory before the Mexican American War.

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