California fire investigators have questioned staff at a prestigious Napa Valley winery about the start of the almost 7,000-acre Pickett fire, which is still burning. A source told The Times that they were looking at the possibility that discarded ashes from the vineyard sparked the major fire.
A water-dropping helicopter flies behind a vineyard while battling the Pickett fire in Napa County on Sunday.
California fire investigators appear to be investigating what role, if any, a prestigious Napa Valley winery played in the start of the almo... [2243 chars]

