EXCELLENT trip report!
You hit ALL the high points in the area.
Good choice RONing in Sierra City. Buckhorn Saloon- great place to toss back some cold ones and watch the world go by on the front porch.
This is some interesting history here...This is Foote's Crossing Road built in the late 1800's, connecting several gold mines, and crossing the Yuba River (middle fork-Foote's Crossing). This rock wall you see here in Stan's photo holding up the road was engineered by Arthur Foote local prominent civil/mining engineer. Very cool late 1800's engineering feat.
Foote was famous for designing and building the Northstar Mine Powerhouse in Grass Valley. The Northstar Powerhouse had the worlds largest Pelton Wheel 'turbine', invented by Lester Pelton in Camptownville, CA. also on Stan's route.
He then commissioned the famous Architect Julia Morgan (Hearst Caste +700 other projects) to design his house near the Northstar Mine. Seen here.