POST protects open space on the Peninsula and in the South Bay for the benefit of all.
POST is creating a network of protected lands where people and nature connect and thrive. These lands are preserved forever so present and future generations benefit from the careful balance of rural and urban landscapes that makes our region extraordinary.
Since our founding in 1977, POST has protected more than 83,000 acres of permanent open space, farms and parkland in San Mateo, Santa Clara and Santa Cruz counties. Discover more about our process and the areas POST has worked to preserve.
POST has protected more than 83,000 acres since its founding in 1977.
In 2022, POST finalized a new strategic plan to help shape our path forward. After input from our staff, board and partners, as well as a close look at the state of conservation in our region, we landed on three priorities that will shape our work: building climate resilience, preserving biodiversity and creating equitable access.
POST will implement land protection and management strategies that build adaptive capacity and resilience to climate change impacts — including drought, fire and increased temperatures.
POST will protect, restore, steward and functionally connect a mosaic of habitats and land uses across our region that preserve our unique biodiversity.
POST will create and nurture sustainable long-term connections between people and nature, addressing current inequities by centering underserved and historically excluded communities in our work.
At POST, our core values define how we do our work. Our mission to “protect open space on the Peninsula and in the South Bay for the benefit of all” takes on greater meaning when we base our actions on the following:
We recognize that we must make more room for cross-cultural ways of connecting with nature, and our Equity Commitment outlines the initial steps we are taking to improve — both within our organization and in relationship to the communities we serve. We acknowledge the past and present circumstances of Indigenous communities in our area and are strengthening partnerships with contemporary tribes from whom we have so much to learn.
POST brings together many organizations and individuals to ensure that open spaces are permanently protected, benefiting our community, our environment and our economy. From the complex transaction process and funding to coordination with multiple public agencies, POST takes a central, catalytic role in conservation projects, adjusting our approach based on each unique situation.
Headquartered in Palo Alto, we are a 501 (c)(3) nonprofit public benefit corporation that is funded entirely through donations from private individuals, foundations and grants. Our taxpayer identification number is 94-2392007.
We are fortunate to work in an area where so many people value our spectacular surroundings. Our history of preservation began in 1977, and since then, we have experienced an outpouring of support by generous donors. We hope you will join us and give today.
Help us protect open space on the Peninsula and in the South Bay for the benefit of all.
Donate Now