La Costa, or the coast, comprises the low-lying land in the western part of the country, including the Pacific coastline. La Sierra ("the highlands") is the high-altitude belt running north-south along the center of the country, its mountainous terrain dominated by the Andes mountain range. La Amazonía, also known as El Oriente ("the east"), comprises the Amazon rainforest areas in the eastern part of the country, accounting for just under half of the country's total surface area, though populated by less than 5% of the population. The Región Insular is the region comprising the Galápagos Islands, some 1,000 kilometers (620 mi) west of the mainland in the Pacific Ocean.
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