This historic book by Colorado's own John Fielder is a must have for all house holds!  

The historic images of early west photographer William Henry Jackson capture a Colorado landscape both pristine and already dramatically affected by the onslaught on western civilization. Standing exactly where Jackson stood, and pointing his own camera in precisely the same direction, John Fielder has rephotographed Jackson's Colorado images to capture the often startling change that has occurred over the last century. The result is breathtaking.