Agapa

a river in the northwest of the Krasnoiarsk Krai, RSFSR; left tributary of the Piasina River. It is 396 km long; its basin area is 26,000 sq km. It is formed at the confluence of the Upper and Lower Agapa rivers, which take their sources in lakes west of Lake Piasino, and flows along the North Siberian plain. Fed by rain and snow, the Agapa is usually in high water.