Steam rises from the Nilhue River, fed by unusually warm water from the hot flanks of an erupting volcano from the Puyehue-Cordon Caulle volcanic chain, as a resident inspects the river water near Lago Ranco town June 9, 2011. A thick cloud of ash from the Chilean volcano brought airports to a halt in Argentina and neighboring Uruguay on Thursday, forcing airlines to cancel dozens of flights, airport officials said. [China Daily/Agencies] |