Monte Rosso Vineyard is located at 1300 Moon Mountain Road just north of the town of Sonoma, off Highway 12. From the south, go through the town of Sonoma following the signs for Highway 12. From the stop light in Boyes Hot Springs, moon mountain Road is 1.5 miles. Moon Mountain Road is directly across from a housing development called "Aqua Caliente Knolls." Turn east on Moon Mountain, following the signs for Louis Martini.