Overview: Western U.S. — Crossing the North American continent in a scant four hours, dawn settles on the Great Plains, the Rocky Mountains, and the coastal ranges and beaches of California before departing the western shore. We witness the geo-dramas of Yellowstone geysers, herds of horses and bison on the open range, the spectacular lighting of the Teton Range. Then in California, we see the massive sequoia, tule elk, a rainbow of wildflowers, the Yosemite Valley, and elephant seals on the beach. These are the great sunrise moments in nearly a dozen morning ecosystems of the west.