State Route 306 is a 30.631-mile (49.296 km) state highway in Lander and Eureka counties in northern Nevada, United States. It connects the mining area of Gold Acres in Lander County to Interstate 80 (I-80) at the Beowawe Interchange near Beowawe in Eureka County via Crescent Valley. The road has been a state highway since the 1920s, having been established as part of a much longer State Route 21 by 1929.

Lander County is a county in the U.S. state of Nevada. As of the 2020 census, the population was 5,734. Its county seat is Battle Mountain.