Bolivia. Instituto Geografico Militar. North Decimal Degree -11.000000. South Decimal Degree -10.833333. East Decimal Degree -69.500000. West Decimal Degree -69.750000. Alternate title: Bolpebra (puesto militar), 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 list of abbreviations.