It rises in northeastern Humboldt County, on the west side of the Santa Rosa Range, just south of the Oregon state line. Its course flows southwest, through the main Nevada lands of the Fort McDermitt Paiute and Shoshone Tribes and then south and southwest, receiving the Kings River flowing south from Kings River Valley. The Quinn River evaporates in a sink at the Black Rock Desert[2] approximately 60 miles (97 km) northwest of Winnemucca on the Hog John Ranch of the Fort McDermitt Paiute-Shoshone Tribe.