30th Anniversary Year

It all began in 1993 with a grassroots effort by citizen activists wanting to protect Santa Clara Valley’s important natural resources. Since then, the Santa Clara Valley Open Space Authority has permanently protected almost 30,000 acres of natural and working lands and envisions a future with an even greater capacity to fulfill the agency's mission of caring for nature, supporting local agriculture, and connecting people to nature.

View a timeline of the agency's history and achievements here.



1) CONNECT with us on social media! Be sure to tag us during your adventures and keep an eye out for contests where you can win cool prizes.   

2) LEARN about nature by signing up for the Open Space Authority's monthly event calendar for opportunities to get outdoors. For those who prefer to learn from home, check out upcoming virtual events! 

3)  Join the Open Space Authority VOLUNTEER program. Help care for nature, so nature can care for us all.

4) EXPLORE your open spaces! Nature is for everyone, and everyone is welcome at Open Space preserves.

5) The Open Space Authority has a variety of VIRTUAL PROGRAMS to enjoy. Discover your open spaces and local wildlife from home. New programs are available LIVE the first Friday of every month through 2023!

6) Sign up to get the latest NEWS from the Open Space Authority's monthly e-newsletter, the Open Space Outlook.


"The Santa Clara Valley Open Space Authority is proud to celebrate 30 years of caring for nature, so nature can care for us. It was 1993, when ordinary citizens, local elected leaders and the California State Legislature joined together to form a new special district and public land conservation agency in Santa Clara County whose mission would be to balance growth by creating a permanent Santa Clara Valley Greenbelt of protected natural and agricultural lands."

Read the rest of General Manager Andrea Mackenzie's message here.

In the News:


It's thanks to partners and supporters that the Open Space Authority continues our work to care for nature, so nature can continue caring for you. Click here to view a list of our partners, Board of Directors, Citizens' Advisory Committeeand staff who make this work possible.