State Highway 20 near Mile Marker MPM39.00
SR-20, Buffalo Ranch, After Lake Mendocino, moving toward Upper Lake. This is a route with varied speeds, mostly 55MPH. The road is clearly in the open on a long downgrade. The patrolman was in a group of cars going up the hill, hidden, picking off cars with radar. It’s easy to drift over the 55 MPH limit if you are not very careful.