Inter American Geodetic Survey. North Decimal Degree -20.333333. South Decimal Degree -20.500000. East Decimal Degree -68.500000. West Decimal Degree -68.750000. Alternate title: Rancho Pillayanta, Bolivia. Relief shown by 20 m. contour interval and spot heights. Universal transverse Mercator projection. Standard map series designation: Serie H731=[Series] H731. With a key top abbreviations.