Stone House is easy to find once you find Middletown. 

It's about a two hour drive from either San Francisco or Sacramento, less than an hour and a half from Ukiah.

Stone House is open for touring the second Saturday of March, June and September from 11 am to 2 pm, and for the Society's annual Christmas Party the first Saturday in December.  Non-residents of Hidden Valley can enter through the Hartmann Road gate, just by leaving their name and telling the guard they are visiting Stone House.

The turnoff from Highway 29 onto Hartmann Road is almost exactly five miles from the Main Street intersection in Middletown. Coming from the north, it is about ten miles from the traffic light at Lower Lake.

18176 Hidden Valley Road, Hidden Valley Lake, CA 95467  •  707-987-3138
Tours for groups of five or more may be made by calling our president, Don Mancuso, 707-987-9297
Or inquire by email: [email protected]