Colorado's mountains are so rugged that the state was settled years later than the surrounding areas -- the harsh winters and steep hillsides dissuaded potential homesteaders. About the America series: As expansive as America itself, this outstanding series captures outstanding views of panoramic landscapes, brilliant city skylines, and picturesque communities. Each volume focuses on a city or state and features 96 pages and 70 stunning images by internationally renowned photographers, plus descriptive captions.