Firefighters fought to maintain the upper hand on a huge and rapidly moving wildfire that swept through rugged mountains north of Los Angeles and resulted in more than 50,000 people being put under evacuation orders or warnings. The Hughes Fire broke out late Wednesday morning and in less than a day had charred nearly 16 square miles (41 square kilometers) of trees and brush near Lake Castaic, a popular recreation area about 40 miles (64 kilometers) from the devastating Eaton and Palisades fires that are burning for a third week.