Suriname and most of the population lives here. The southern part consists of tropical rainforest and sparsely inhabited savanna along the border with Brazil, covering about 80% of Suriname's land surface. The two main mountain ranges are the Bakhuys Mountains and the Van Asch Van Wijck Mountains. Julianatop is the highest mountain in the country at above sea level. Other mountains include Tafelberg at , Mount Kasikasima at , Goliathberg at and Voltzberg at . Suriname is situated between French Guiana to the east and Guyana to the west. The southern border is shared with Brazil and the northern border is
Geology of French Guiana the Paramaca series, which corresponds to a series of micaschists, aluminous paragneisses and black quartzites whose total thickness is about 1 km. The central granite massifs consist of granite plutons, granodiorites and quartz diorites dating from 2.05 to 2.15 billion years ago. The north of French Guiana corresponds to a synclinorium composed of the Paramaca series on which sandstone and fluviatile conglomerates lie unconformably. Shield rocks in Guyana are all dated between 1.6 and 2.5 billion years ago. The Quaternary lands are located in the northern part of Guyana, near the coast, unconformably on the Paleozoic lands. The coastal plains