(CA-40-11) in Arroyo Grande, San Luis Obispo County, CA. Branch St. W. 0.3 miles from jct with Grand Av., right on Old Ranch Rd. 0.35 miles, right on Mercedes Ln. 0.1 miles to the turret ahead at 252. (N35 07.683 W120 34.986) Photo by Mark & Maggie Comstock 10-7-23.