California State Route 186

State Route 186 (SR 186), also known as Algodones Road, is a state highway in the U.S. state of California that connects Interstate 8 (I-8) in Imperial County with the U.S.–Mexico border near the Colorado River. Its southern terminus is at the Andrade Port of Entry, which connects it to Los Algodones, Baja California, and its northern terminus is near Winterhaven, California in the location of Araz Junction. The route is only 2.070 miles (3.331 km) long, heading along the length of the Alamo Canal and the All-American Canal within the boundaries of the Fort Yuma-Quechan Reservation. The route was assigned in 1972 in Imperial County, and the interchange with I-8 was constructed a year later.