|The Mitchell Historic Commercial District has local significance under Criterion A in the areas of Commerce, Transportation, Politics/Government, and Entertainment/Recreation. The Mitchell Historic Commercial District is also eligible for the National Register of Historic Places under Criterion C for Architecture because it embodies important local expressions of trends in architectural forms, styles , and functions. Mitchell's downtown was established with the railroad in the late nineteenth century, grew exponentially from 1900 to 1930, and then participated in the national trend of modernizing storefronts and facades in the automobile age of the 1940s-1960s. Its buildings represent trends in commercial forms and modernization, as well as Romanesque, Neoclassical, Beaux Arts, Prairie Style, and Art Deco stylistic Influences on commercial and institutional architecture. The district conveys a historical sense of time and place through its arch itecture and setting. The district contains an intact core of local commercial resources from the latter decades of the nineteenth century to the mid-twentieth century. The original nomination included the specific dates of 1886-1933. This update sets the period of significance to 1883- 1963 in order to reflect the full expanse of resources, from the earliest constructed buildings to mid-century modernizations, that speak to the significant periods of development in downtown Mitchell. The update also proposes revised boundaries for the historic district that enclose the historic core of downtown Mitchell, and eliminate areas on the periphery of the original district boundary where the majority of buildings have been demolished or have lost historic integrity through alterations or loss of setting.