Office holiday closure

Our office will be closed December 23-January 3. Open space preserves remain open!

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 alert
Coyote Valley Arrowhead Trail one-way for bikes

Bikes must travel one-way around the Arrowhead Loop Trail. In December 2024, bikes travel counterclockwise. In January 2025, bikes travel clockwise. 

Weather alert
Máyyan 'Ooyákma – Coyote Ridge Habitat Protection Area Closed Due to Wet Conditions

The Habitat Protection Area is currently closed due to wet conditions.

Preserve closed
Máyyan 'Ooyákma – Coyote Ridge Máyyan ‘Ooyákma – Coyote Ridge Closed 1/11-1/12

Máyyan ‘Ooyákma – Coyote Ridge will be closed to the public on Sat, Jan 11 through Sun, Jan 12 for scientific research in partnership with the California Department of Fish & Wildlife. 

Trail alert
Máyyan 'Ooyákma – Coyote Ridge Butterfly Pass required in Habitat Protection Area

Butterfly Pass required in Habitat Protection Area. Get yours here.

Trail alert
Sierra Vista Aquila Trail one-way

Visitors must travel counterclockwise around Aquila Trail