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
Preserve alert	Máyyan 'Ooyákma – Coyote Ridge	Limited parking Friday 3/20/26 Special event Friday, March 20, 10am-11am. PARKING LIMITED.
Parking lot closure	Rancho Cañada del Oro	Main parking lot closed 4/10/26, 9am-2pm The main parking lot will be closed Friday, April 10, from 9am-2pm for a special permit. Limited parking available in the overflow lot.
Preserve alert	Máyyan 'Ooyákma – Coyote Ridge	Spring weekend hikes: pre-booking REQUIRED Visitors interested in accessing Máyyan 'Ooyákma - Coyote Ridge Open Space Preserve on any weekend from March through May MUST pre-book a spot.
Preserve alert	Coyote Valley	Horse Trailer Parking Update Beginning March 1, 2026, reservations will be required for horse trailer parking. Read more about the pilot program here. To make a free reservation for horse trailer parking at Coyote Valley Open Space Preserve, please reach out to info@openspaceauthority.org or call (408) 224-7476.
Trail alert	Coyote Valley	Arrowhead Trail one-way for bikes Bikes must travel one-way around the Arrowhead Loop Trail. Direction rotates monthly. Click here to view the schedule (PDF)
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.