My Grandfather Al told me a little about the Russian river area when I went to visit him in Sebastopol, California a few years back. (I’m guessing Sebastopol is named after Sevastopol on the recently acquired [or reacquired?] Crimean peninsula of Russia.) Fort Ross was an outpost of the Russian-American Company from 1812-1842. This particular section of California was the meeting point of Russian, Spanish and then American expansion during the 1800’s.
The section of coastline from Fort Ross to Jenner ended up being some of the most memorable of the whole tour.