Inter American Geodetic Survey. North Decimal Degree -17.000000. South Decimal Degree -17.166667. East Decimal Degree -68.000000. West Decimal Degree -68.250000. Alternate title: Ayo Ayo, 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 glossary.