Jackson started photographing Colorado for the Hayden Survey to map the West in 1870.
He even climbed Rocky Mountains peaks that are over 14,000 feet high in to capture his photographs for the survey.
Due to the lack of railroads, Jackson did not photograph the eastern plains and northwestern Colorado.
Jackson later sold his business and the negatives from his photos to a photography company in Detroit when Colorado's economy declined in the late 1890s.
Fielder worked with the Colorado Historical Society which had a large collection of Jackson's photographs taken a century earlier.
Jackson took thousands of photographs throughout his Colorado travels so it was an enormous challenge for Fielder to narrow down 300 photos that he would rephotograph from 1997-1998.