Boulder Fourmile Canyon fire likely caused by crash into propane tank: Listen to 911 call here

At least the Fourmile Canyon fire still roaring near Boulder doesn't appear to have been caused by some idiot tossing a burning cigarette out the window. Instead, a 911 call released yesterday suggests that the whole thing started as the result of an accident involving a propane tank.

Listen to the 911 call below, courtesy of