NO. 835 COOPER'S SAWMILL - In 1834, Mariano G. Vallejo's brother-in-law, John B. R. Cooper, constructed California's first known power-operated commercial sawmill. In addition to sawing redwood lumber, the mill and surrounding settlement served as a barrier to Russian encroachment from the west. Located on Mark West Creek, the waterpowered mill was destroyed by flood in the winter of 1840-41.
In the parking lot at the intersection of Mirabel and River Rds (P.M. 174) near Mirabel Park, 8 mi W of Santa Rosa