Santa Cruz, the most important town during the lowlands, is situated below, as are the vast majority of Bolivia's petroleum and purely natural fuel reserves. The southeastern Component of the lowlands is a component on the Gran Chaco. Almost rainless for nine months in the yr, this region gets to be flooded for the a few months of significant rains. The intense variation in rainfall supports only thorny scrub vegetation and cattle grazing, Despite the fact that latest discoveries of organic gas more and petroleum close to the foothills with the Andes have captivated some settlers for the region.