The Public Land Survey System is a way of diving land. They are mostly used to divide public domain lands in the United States.
Sunday, December 5, 2010
"Isopach"
This type of contour map usually shows information about the underground levels of the geological strata.
An isopach map usually illustrates common areas of thickness of a given area.
"Thematic Map"
These maps portray physical, social, political, cultural, economic, sociological, agricultural, or any other aspects of a city, state, region, or nation.
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