Soulajule Reservoir, located in West Marin, is one of seven reservoirs in MMWD’s water supply system. Built in 1979, it has a capacity of 10,572 acre feet*, which accounts for approximately 13 percent of the district’s total reservoir capacity.
Soulajule Reservoir is open to the public seven days a week from sunrise to sunset.
Fishing is allowed year round and is regulated by the California Department of Fish and Game (DFG). Fishing licenses are required for anyone16 years of age and older. For a recorded message with the most current fishing information, please call (415) 945-1194. Click here for more information about fishing on watershed lands.
Neither boating nor swimming are allowed. Pets are allowed on leash. There is not an established hiking trail around the reservoir, so hiking is not recommended.
Getting There from the Town of Nicasio
1. Head northwest on Nicasio Valley Road (drive 3.2 miles).
2. Turn right on Pt. Reyes-Petaluma Road (drive 4.3 miles).
3. Turn left onto Hicks Valley Road (drive 2.7 miles).
4. Turn left onto Marshall-Petaluma Road (drive 3.0 miles).
5. Turn left at 1400 Marshall-Petaluma Road onto Arroyo Sausal Road and enter through the automatic gate.
6. Follow the gravel road and turn right onto the bridge.
7. Park in the parking area at the base of the dam (1.4 miles from Marshall-Petaluma Road). Do not drive up the road that leads up the dam. This is for authorized vehicles only.
Area Highlights: Restoring Endangered Baker’s Larkspur
Beginning in early 2010, MMWD in collaboration with the UC Botanical Garden at Berkeley, the California Native Plant Society and the US Fish and Wildlife Service (USFWS) have been working to reintroduce Baker's larkspur (Delphinium bakeri), a state and federally endangered plant, at Soulajule Reservoir. Soulajule Reservoir is one of a handful of sites where new self-sustaining populations are being planted to help reestablish this plant in the wild in locations less vulnerable to disturbance.
Soulajule Reservoir is an ideal site because it lies within Baker’s larkspur’s historic range and contains sites similar to where the plant grows naturally. Since 2003 the UC Botanical Garden at Berkeley has been propagating new plants from seed collected from the one remaining wild population.
Funding from the USFWS Partners for Fish and Wildlife program is helping the district give new life to this endangered wildflower.
*One acre foot is 325,851 gallons, enough water to cover one acre (about the size of a football field) to a depth of one foot.