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 closed
Máyyan 'Ooyákma – Coyote Ridge Habitat Protection Area Closed June 18-20

Due to construction, trails inside the Habitat Protection Area are closed 6/18/25-6/20/25

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.

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) 

Trail alert
Sierra Vista Aquila Trail one-way

Visitors must travel counterclockwise around Aquila Trail