An independent special district in the San Francisco Bay Area that has preserved a regional greenbelt system of over 63,000 acres of public land and manages 26 open space preserves.

What's new?

Toxic Mushroom Warning!

Mountain Lion activity at Rancho San Antonio

Get the latest Midpen updates in our January Newsletter!

Now Hiring for multiple positions

New Midpen Board Members

New on-leash dog access at Upper La Honda Creek.

Upcoming Activities

January 22, 2019