An independent special district in the San Francisco Bay Area that has preserved a regional greenbelt system of nearly 65,000 acres of public land and manages 26 open space preserves.

What's new?

Apply to serve on the Measure AA Bond Oversight Committee! Applications due June 26.

Have you visited a Midpen preserve recently? Take our visitor survey!

Notice of Preparation of a Draft Program Environmental Impact Report for the Proposed Wildland Fire Resiliency Program.

One-way routes on trails in Rancho San Antonio.