The Midpeninsula Regional Open Space District is a regional greenbelt system in the San Francisco Bay Area comprised of over 60,000 acres of land in 26 open space preserves.

What's new?

Midpen receives AAA Rating, will begin issuing Green Bonds

General Manager's message - Crowdsouring Nature

Find out what's new in our Fall Newsletter!

Now Hiring for multiple positions. Put your passion for open space to work!

Visit the new Midpen Store to purchase logowear and more!

The Ravenswood Bay Trail project will complete a critical missing gap in the Bay Trail.

Upcoming Activities

September 3, 2016
September 3, 2016
September 4, 2016