Central Valley Winter Sky | G Dan Mitchell Photography Pre-sunrise winter sky and thin fog above Central Valley wetlands.Central Valley Winter Sky. © Copyright 2013 G Dan Mitchell – all rights reserved.Pre-sunrise winter sky and thin fog above Central Valley wetlands.These days it is hard to precisely put my finger on the character of California’s Great Central Valley, comprised of the San Joaquin and Sacramento Valleys and the delta where they merge with the San Francisco Bay. Many years ago…