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Townships are identified with both a township and range designation. Townships are generally numbered from a north/sout baseline, designated as either north or south. Ranges are generally numbered from an east/west baseline, designated as either east or west. Townships are typically divided further into 1 mile sections.

乡级地籍单元(township)需同时采用township编号与range(range)两项标识完成识别。乡级地籍单元通常以南北基准线为参照进行编号,分为北纬乡与南纬乡两类。range(range)通常以东西基准线为参照进行编号,分为东向与西向两类。乡级地籍单元通常会进一步划分为边长1英里的区段(section)。

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