News and Events

Download the 2014-2015 Annual Report.

New Coyote Valley Linkages Assessment Study Confirms Coyote Valley as Critical Wildlife Linkage

Bobcat Near Fisher Creek

A new study confirms that Coyote Valley provides an important land link for wildlife. Learn more here.

Coyote Ridge Open Space Preserve featured on NBC's OpenRoad with Doug McConnell

Aerial of Santa Clara County Ag Land

Check out the video of Coyote Ridge, where Doug speaks with our very own Andrea Mackenzie and hikes up the ridge to see wildflowers and butterflies!

Volunteer Opportunity

Check out our monthly volunteer opportunities for the summer here.


Birding by Beginners for Beginners

Beginners for Beginners

Join us in May for a beginner birding experience! Learn more here.


Request for Proposal

Click HERE for more info.



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Read the Current e-Newsletter

Read the Current OSA Outlook—Spring 2016


Trails Rancho Canada Del Oro

Rancho Cañada Del Oro
Quiet rural landscape and almost nine miles of trails in the Santa Cruz Mountain foothills.

Rancho Trail Map


Sierra Vista

Sierra Vista
Sweeping views and ten miles of trails in the Eastern foothills perched atop Alum Rock Park.

Sierra Vista/Boccardo Trail Map


Coyote Valley

Coyote Valley
4 miles of beautiful trail located in the Valley of the Heart’s Delight

Coyote Valley Trail Map


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Public Meetings
Bay on the Brink
Our Bay on the Brink

This provocative mini-doc outlines opportunities to protect SF Bay Area communities from catastrophic storms and flooding that could cost up to $10.4 billion.

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Public Meetings

Board and Committee Meetings and Agendas

Citizens Advisory Committee Meetings and Agendas

Measure Q Expenditure Oversight Committee Meetings and Agendas