Colorado Salt Marsh

The Colorado salt marsh belongs to the dry plains of La Rioja, where drainage from the Los Colorados valley spreads into low ground. In this broad inland depression, streams descending from the surrounding ranges lose their force and deposit sediment. Sparse rainfall and strong evaporation favour saline soils and marshes that vary with the supply of water. These shallow basins form part of a landscape of arid plains and isolated mountain ranges east of the Andes.