Physical address: 3124 Sonoma Mountain Road, Petaluma, CA, 95954
Mailing address: Post Office Box 750842, Petaluma, CA, 94975-0842
Ranch Phone: 707.996.5049
How to get here: The Mitsui Ranch, owned and operated by the Sonoma Mountain Ranch Preservation Foundation (SMRPF) is located atop Sonoma Mountain at the very end of Sonoma Mountain Road east of Petaluma. We can only be reached from the west (Petaluma) side of the mountain, from Adobe Road. Some search engines and mapping programs will incorrectly indicate accessibility from the Sonoma or Glen Ellen side. Please ignore this because we are only accessible from one route: Adobe Road to Sonoma Mountain Road. To make matters more confusing, there are two Sonoma Mountain Roads that have nothing to do with one another and do not connect. One originates near Glen Ellen off of Warm Springs Road and runs around the north side of the mountain to Pressley Road, just east of Rohnert Park. It’s a beautiful drive, but we cannot be reached from this road. The correct one is described below.
From Highway 101 (north or south) in Petaluma, take the East Washington Boulevard exit and go east off the highway toward the mountains. Proceed 1.8 miles on East Washington Boulevard until you reach a traffic light at Adobe Road. Take a left at the traffic light and drive 0.8 miles north on Adobe road until you see Sonoma Mountain Road on your right. Turn onto Sonoma Mountain Road and drive until you reach the end of the road, which will be at our gate.
From the east (coming from Napa), we can be reached by taking Highway 12 to Highway 116, then veering right onto Adobe Road; then to Sonoma Mountain Road.
The ranch is secured by a locked gate and permission is required to enter. Once inside the gate, please take the dirt road which turns left off of the paved road after 0.2 miles (at the top of the incline). The paved road ends at our neighbor’s home and they appreciate their privacy. The SMRPF cottage is 0.4 miles in on the dirt road. Please observe a 15 mph speed limit, and stay on established roads. Thank you.
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