The '''US survey mile''' is defined in reverse, with 1 metre being equal to 39.37 inches exactly<ref>http://ts.nist.gov/WeightsAndMeasures/Publications/appxc.cfm#footnote8</ref>. The US survey mile is therefore 3 mm longer than the international mile at 1,609.347 metres<ref>http://ts.nist.gov/WeightsAndMeasures/Publications/appxc.cfm#footnote11</ref>). This unit of measurement is used by US Public Land Survey System. | The '''US survey mile''' is defined in reverse, with 1 metre being equal to 39.37 inches exactly<ref>http://ts.nist.gov/WeightsAndMeasures/Publications/appxc.cfm#footnote8</ref>. The US survey mile is therefore 3 mm longer than the international mile at 1,609.347 metres<ref>http://ts.nist.gov/WeightsAndMeasures/Publications/appxc.cfm#footnote11</ref>). This unit of measurement is used by US Public Land Survey System. |