Arque River
 Arque River is one of the headwaters of Río Grande and Mamoré River in Bolivia. Arque River has its source in the Kimsa Cruz mountain range on the western slope of the mountain Waylluma at 17°41′0″S 66°43′30″W 50 km northeast of the mining city Oruro and 65 km southwest of Cochabamba. The river flows 50 km in a southeasterly direction before it turns northeast.