At about 3 p.m., the helicopter whirled into action after the Marin County Sheriff's Office called for assistance in transporting the hiker, Charlotte Loving of Concord, according to the CHP.
Loving had been hiking along the Cataract Trail, which runs south from Alpine Lake along the north face of Mount Tamalpais, when she fell 22 feet into a ravine. The 2.6-mile trail, described as "short but moderate," is dotted with steep sets of steps.
Upon its arrival at about 3:30 p.m., the chopper lowered a basket below the tree line of the forested trail, scooped up Loving and flew north, landing at Alpine Dam to prepare Loving for medical transport.
She was taken to John Muir Medical Center in Walnut Creek for treatment of her injuries, which included a cut to the back of her head, a possible fracture of her right ankle and bumps and bruises on her right elbow, the CHP said.