National Forest Development Road 4600-850 in Deschutes County, Oregon

National Forest Development Road 4600-850 in Deschutes County is a service road (also known as South Lava Flow). It runs in a north-south direction and ends at National Forest Development Road 4600-840, while the other end is a cul-de-sac. National Forest Development Road 4600-850 is also known as South Lava Flow. National Forest Development Road 4600-850 also exists in Klamath County.