Although the Grand Canyon is a desert, it's a kind of oasis in winter
a place of peace, free of summer's crowds and traffic jams.
The Colorado River cuts through the mile-deep canyon. The scientist
John Strong Newberry, part of an 1857 expedition into the canyon, said
that "nowhere on the earth's surface, so far as we know, are the
secrets of its structure revealed as here."

Pictures by Richard Perry