Margaret McKinley, known to her friends as Elaine, joined a small group for a hike on Thursday morning in the San Mateo County open space known as the Windy Hill Preserve. "They started at around ...

Margaret “Elaine” McKinley was hiking on the Lost Trail of the Windy Hill Open Space Preserve when she was last seen on Thursday, according to the San Mateo County Sheriff’s Office.

The search for a hiker has extended to its fifth day in the Windy Hill Open Space Preserve in San Mateo County.