Prehistoric cultural affiliation(s) include Native American, Prehistoric,Middle & Late and Northwestern Plains dating back to 2999 BC.
Many famous people are associated with these Yellowstone County historic places including Ignatius D. O'Donnell, Austin North, Rudolph Molt, Christian Yegen, Taylor,Muggins, et al. and Peter Yegen.
Some of the country's most noteable architects helped create the Yellowstone County places including Eams & Sawyer, Gagnon & Co., Oscar Wenderoth, John G. Link, Link & Haire, G. McAlister, E.H. Gagnon, Charles S. Haire, R.J. Hardenbergh and Edgar B. & Bros. Camp. Prominent architectural styles found in Yellowstone Country are Late 19th And 20th Century Revivals, Modern Movement and Classical Revival.