A fast-moving wildfire in Napa and Solano counties grew to more than 9 square miles Thursday, scorching drought-parched countryside near Lake Berryessa and sending hikers, homeowners and wildlife fleeing to safety. As of Thursday afternoon, the 6,900-acre fire was 15 percent contained and threatening some 200 structures. The communities of Quail Ridge and Golden Bear were under evacuation orders. Canyon Creek and Lake Solano campgrounds and Canyon Area hikers have also been evacuated.