The importance of the Mt. Crumpit setting in the story can be illustrated by the following two points:
A. It is isolated, revealing that the Grinch is a person who stays to himself and doesn't concern himself with others.
This isolation emphasizes the Grinch's solitary lifestyle and his disconnection from the community of Whoville, highlighting his character's initial unhappiness and disdain for social interactions.
C. He lives 3,000 feet above Who-ville, which suggests that he looks down on the Whos as though they are beneath him.
This geographical distance not only enhances the Grinch's physical separation from the Whos but also symbolizes his emotional and social superiority. It represents his negative attitude towards the Whos and their joyous celebrations, thereby setting the stage for his character development throughout the story.
These elements of the setting contribute significantly to the thematic development and overall plot of the story.