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?

Mountain Lion Activity at Rancho San Antonio

Our January e-news is full of info about activities, preserves and more!

Fremont Older - Prospect Rd. Parking Lot closure schedule.

Construction Notice - Rancho San Antonio

Mount Umunhum road closures to begin September 12th

Now Hiring for multiple positions

Upcoming Activities