NEW : `` We 're gaining , '' CNN incident commander says . NEW : Families may be allowed to return to some neighborhoods Thursday and Wednesday . NEW : The fire has scorched thousands of acres in High Park , Colorado . His children 's backpacks were placed by the door , stuffed with their favorite toys . Thick clouds of smoke are visible from miles around ; Hundreds personnel now involved in fight .
NEW : `` We 're gaining , '' CNN incident commander says . NEW : Families may be allowed to return to some neighborhoods Thursday and Wednesday . NEW : The fire has scorched thousands of acres in High Park , Colorado . Thick clouds of smoke are visible from miles around ; Hundreds personnel now involved in fight .