Colgan Creek originates in the foothills of Taylor Mountain, flows across the Laguna de Santa Rosa, into the Russian River and eventually to the Pacific Ocean. Sections of the creek were relocated and channelized in the 1950s, but in 2002 the Santa Rosa City Council adopted the Lower Colgan Creek …
In partnership with Sonoma and Gold Ridge Resource Conservation Districts, the program will focus on natural resource enhancement projects on Ag + Open Space conserved lands SANTA ROSA, CA (May 12, 2026) – Sonoma County Ag + Open Space is proud to announce that today our Board of Directors approved …
As spring makes its final descent across Sonoma County, we see the pace increase on our working lands: the farms, ranches and people who shape this place we call home. We are honored to feature Anna Jacobsen, whose family’s ranching legacy is woven into the fabric of Sonoma County. Her …
Ag + Open Space advocates for increased and expedited Prop 4 funding A couple times each year, members of our staff head to Sacramento with colleagues from other open space districts, land trusts, park districts, and all manner of public access and conservation organizations throughout the Bay Area to speak directly to legislators and their staff about allocating stable funding to our …
Spring in Sonoma County means one thing for many of us: wildflower season is almost here and the landscape is about to burst with color. Why wildflowers matter here Wildflowers bring beauty, but they also help keep Sonoma County thriving with their support of bees, butterflies and hummingbirds that in …
As we look back on 2025, we’re struck by just how much this work is shaped by people: landowners, partners, volunteers, community members and staff who care deeply about Sonoma County. From protecting new lands to caring for the places already conserved, 2025 was about steady progress and meaningful relationships. …
At Ag + Open Space, our mission has always centered on protecting the lands that sustain our way of life, from working farms and ranches to natural areas that safeguard clean water, wildlife habitat and scenic beauty. But just as important as protecting the land is ensuring that everyone in …
At the place where Marin and Sonoma Counties meet, the Estero Americano Coast Preserve protects 547 acres of some of the North Coast’s most striking and ecologically important landscapes. Located just south of Bodega Bay, this remarkable property represents the power of partnership in conserving lands that define Sonoma County’s …
Nestled in the Mayacamas northeast of Healdsburg, Modini Ranch is a 1,725-acre property made up of two Ag + Open Space conserved properties – Modini Ranch and McCord Ranch North. The preserve was originally conserved through the efforts of former landowners Jim and Shirley Modini, who wanted to protect the …
In January of 2000, Ag + Open Space staff had the pleasure of working with the Robert Camozzi family to conserve their 256-acre dairy on Pepper Road northwest of Petaluma. Protected primarily to preserve its agricultural and scenic open space values, this multi-generational dairy is still in operation today. With …