Bolivia. Instituto Geografico Militar. North Decimal Degree -18.166700. South Decimal Degree -18.3333. East Decimal Degree -59.7500. West Decimal Degree -60.0000. Alternate title: Robore, 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.