Rivers of America: The Colorado

From perpetually snow-capped peaks to stifling deserts below sea-level, the Colorado cuts the deepest and truest cross-section through the heart of the continent.It flows through time as well as space. At the bottom of the Grand Canyon lies one of the early layers of the earth's crust. The cliff dwellers' civilization, and the rise and fall of the great pueblos were only a brief moment in its history. Later came the Spaniards, and then the trappers and prospectors. Not so long ago the India...