Overview

• Margaret 'Elaine' McKinley, 79, was last seen wearing a red jacket and black pants after separating from her family during a hike at Windy Hill Preserve on Thursday afternoon.
• McKinley suffers from dementia, increasing the urgency and complexity of the ongoing search operation.
• The San Mateo County Sheriff's Office is leading a coordinated search effort involving air support, K-9 units, mountain rescue teams, volunteers on horseback, and ground personnel.
• Residents and visitors near the preserve are advised to expect heightened law enforcement activity as search teams work to locate McKinley.
• Authorities urge anyone with information about McKinley's whereabouts to contact 911 immediately.