The Stone House is the oldest building in Lake County, Northern California.

It is open for touring quarterly and by appointment with the Stone House Historical Society.

His wife was the first non-Indian woman to enter the Coyote Valley.

In 1861, when Lake County was split off from Napa County, John Cobb was hired to manage the Rancho Guenoc and Rancho Collayomi of the Ritchie estate.

He moved with his wife and younger children into the Stone House, which had been abandoned, and farmed there for about three years.