Regionalism in literature is used to give an identity of the people, based on their features, customs confined to a particular region only.
Explanation:
Regionalism is used to describe a particular culture, geography, customs and characters, topography and so on but it is confined to a particular region only and not extending beyond that region making an identity of people of that region.
In literature in America, regionalism is meant to describe people of particular region and give their identity which leads to small scaled representations over the representations of the broad territory range.
