Display USGS section, township and range grids. As you zoom in, township and range will resolve into individual sections.
Section - A one-square-mile block of land, containing 640 acres, or approximately one thirty-sixth of a township. Due to the curvature of the Earth, sections may occasionally be slightly smaller than one square mile.
Township - An approximately 6-mile square area of land, containing 36 sections. Also, a horizontal row of townships in the PLSS.
Range - A vertical column of townships in the PLSS.
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