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?

Fremont Older - Prospect Rd. Parking Lot closure extended through March 3.

Mountain Lion Activity at Rancho San Antonio

Now Hiring for multiple positions

Learn what's happening this month in our February e-news.

Construction Notice - Rancho San Antonio

Mount Umunhum road closures to begin September 12th

Upcoming Activities