Throughout the world, the American West has defined the character of the United States of America as no other region in America ever could. The combination of awe-inspiring topography and landscapes, from the 100th meridian to the Pacific Coast, along with the integration of Indian and Hispanic cultures into the American fabric of life have long inspired citizens of the world to travel to and explore the vast lands that define the American West, from the middle of the nineteenth century to the present time.

Photography helped to open up the West after the American Civil War by...