A wind-driven wildfire in Rocky Mountain National Park northwest of Denver jumped containment lines overnight, triggering the evacuation of hundreds of people on Saturday, fire officials said. Wind gusts of more than 70 miles per hour blew flames from the so-called Fern Lake Fire close to dwellings and destroyed at least one cabin, said fire spokeswoman Traci Weaver. The east side of the park was closed, and authorities called 1,100 cell and home phones, warning people to either evacuate or prepare to leave quickly if winds drive flames their way.