Midpen works in partnership with regional fire and law enforcement agencies to manage public safety in the open space preserves. Information on significant incidents such as wildland fire, search and rescue operations and hazardous conditions that could affect public safety will be posted on this web page.

Before leaving home, be sure to check trail conditions and preserve pages to say up-to-date on regulations and potential temporary closures, and follow these tips to Know Before You Go.

Current Incidents

Search for Lost Hiker in Windy Hill Open Space Preserve

Updated May 3, 2025 at 9 a.m.

All access to Windy Hill Preserve from the Portola Valley area is TEMPORARILY CLOSED to the public while search and rescue efforts are ongoing and vehicles, equipment and personell involved in the search are being staged in the area.

Midpen rangers are assisting the San Mateo County Sheriff’s Office in the ongiong search for a missing person identified as a 79-year-old woman with dementia who was last seen on Thursday, May 1, 2025, at approximately 12 p.m. in Windy Hill Open Space Preserve.

There is an increased law enforcement presence in and around the preserve. To aid the efficiency of the search, please avoid the area of the Windy Hill parking area in Portola Valley to allow trained personnel to conduct their work.

Anyone with sightings or information is asked to please call 911.

Further updates from Midpen will be provided on this web page.

May 2 Press Release from San Mateo County Sheriff