PLSS Maps

Public Land Survey System Maps

Minnesota PLSS

http://www.fairview-industries.com/standardmodule/mn-exmpl.htm

The public land survey system is a way of subdividing the land in the United States. PLSS maps are used to distinguish public land owned by the government. Above is a map from a portion of Minnesota which includes numbered blocks. These blocks include various date for instance county code, lot counts and acres.