PLSS Map

PLSS (Public Land Survey System) maps are used to divide up public lands which are owned by the Federal Government. These are created to help the citizens of the United States. Since these surveys were completed many changes have occured in regards to public lands being now privately owned and vice versa.

http://gis.nwcg.gov/giss_2006/job_aids/maps_and_graphics/USA_PLSS_Meridians_map.jpg