Prehistoric cultural affiliation(s) include Early Paleoindian dating back to 14999 BC.
Several famous people are associated with these Grand County historic places including William Zane Cozens and Ezra Kauffman.
Some of the country's most noteable architects helped create the Grand County places including NPS Landscape Engineering Division, NPS Office of Design & Construction, Daniel L. Hull, Howard W. Baker, Thomas C. Vint, T.C. Vint, William Zane Cozens, Northwestern and Pacific R.R. Denver, J. J. Argo and Franklin I. Huntington. Prominent architectural styles found in Grand Country are Late 19th And Early 20th Century American Movements, Other and Ranch House.