Basement rocks on the east side of the Macarenas include the Precambrian granite of the Guyana Shield in the Guaviare River valley and the San Jose del Guaviare area.
The rocks of the shield are overlain by sandstones and conglomerates of the Vaupes Formation of Lower Paleozoic to the lower Oligocene age.
Basement rocks on the east side of the Macarenas include the Precambrian granite of the Guyana Shield in the Guaviare River valley and the San Jose del Guaviare area. The rocks of the shield are overlain by sandstones and conglomerates of the Vaupes Formation of Lower Paleozoic to the lower Oligocene age.
Serranía de la Macarena