The Charrúa were an Amerindian, Indigenous People or Indigenous Nation of the Southern Cone in present-day Uruguay and the adjacent areas in Argentina (Entre Ríos) and Brazil (Rio Grande do Sul). They were a semi-nomadic people who sustained themselves mainly through hunting and gathering. Since resources were not permanent in every region, they would constantly be on the move. Rain, drought, and other environmental factors determined their movement. For this reason they are often classified as seasonal nomads.