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	Rancho Cañada del Oro	2/20/25 - Preserve closed Rancho Cañada del Oro CLOSED Thursday, February 20, for resource management.
Trail alert	Rancho Cañada del Oro	Mountain Lion Sighting 2/4/2025: Mountain lion sighting at Longwall Canyon and Mayfair Trail. Click here to learn more about wildlife safety.
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	Sierra Vista	Aquila Trail one-way Visitors must travel counterclockwise around Aquila Trail
Trail alert	Coyote Valley	Arrowhead Trail one-way for bikes Bikes must travel one-way around the Arrowhead Loop Trail. February 2025: Bikes travel clockwise. March 2025: Bikes travel counterclockwise.
Preserve closed	Máyyan 'Ooyákma – Coyote Ridge	Máyyan 'Ooyákma – Coyote Ridge Closed Máyyan 'Ooyákma – Coyote Ridge will be closed Monday, 2/24 through Tuesday, 3/4 for preserve maintenance