A muddy trail winding through green hills is blocked by a small mudslide cutting across it

Alerts and Closures

Know Before You Go

Before visiting the preserves, please check this page for notices, closures and safety advisories.

To report an incident or issue such as obstructions on the trail at an Open Space Authority preserve, please Contact Us and select “Trail/preserve questions.”

To report a fire, medical emergency or suspicious activity at an Open Space Authority preserve, please call 911 immediately.

Alert Level	Preserves	Description
Trail closed	Máyyan 'Ooyákma – Coyote Ridge	Habitat Protection Area Closed Habitat Protection Area (Serpentine Spring, Tule Elk, and Bay Checkerspot trails) CLOSED October 10/1/25 - 11/7/25 for resource management
Parking lot closure	Rancho Cañada del Oro	10/25/25 - Main parking lot closure Main parking lot closed Saturday 10/25/25 from 1pm-6:30pm for special event. Overflow lot is available for parking.
Parking lot closure	Rancho Cañada del Oro	10/25/25 - Equestrian lot closure Equestrian lot closed Saturday 10/25/25 for special event. Overflow lot available for horse trailer parking.
Parking lot closure	Rancho Cañada del Oro	11/1/25 - Overflow lot closure Overflow lot closed Saturday 11/1/25 from 9am-12pm for special events.
Preserve closed	Máyyan 'Ooyákma – Coyote Ridge	Habitat Protection Area Closed Mondays and Tuesdays Habitat Protection Area (Serpentine Spring, Tule Elk, and Bay Checkerspot trails) CLOSED Mondays and Tuesdays for scientific research.
Trail alert	Máyyan 'Ooyákma – Coyote Ridge	Butterfly Pass required in Habitat Protection Area FREE Butterfly Pass required in Habitat Protection Area. Get yours here.