(Entrance, CA-49-11) NW of Jenner, Sonoma County, CA. CA1 NW 11.25 miles from jct with La Porte Dr. in Jenner, S. on Ft. Ross Rd. 100 yds to the bldg. (N38 31.056 W123 14.821) Photo by Mark & Clare Comstock 10-10-23.