Challapata is the capital of the Eduardo Abaroa Province as well as of the Challapata Municipality in the Oruro Department in Bolivia. It lies at an altitude of 3,738 m above sea level on the edge of the 250-acre (1.0 km2) flood plain of the river on the east bank of the Tacagua Poopó Lake. Challapata is located half way of the road and railway connection from Oruro to Potosí, about 130 kilometers from both cities. Directly southeast of the city rises the Cerro Azanaques, with 5102 m the highest peak in the Azanaques Mountain Range (Cordillera de Azanaques).