In Arthur Miller's The Crucible, the playwright occasionally uses adjectives and descriptive phrases to create a mood of isolation. For the most part, though, I would say that Miller's writing is rather unadorned with adjectives and figurative language, and that describing the play's setting is not the chiefest of his concerns.
Throughout the play, frequent references to the girls dancing in the forest create the image of isolation.
Also early in the play, John Proctor wants to distance himself from Abigail, with whom he has had an affair, by threatening to cut off his own hand.
In Act 1, Scene 2, we hear that Proctor will have a difficult time proving Abigail's denial of having anything to do with witchcraft because he was alone with her when she made the statement and therefore no other witness was present.
Later, when Mr. Hale comes to Proctor's house, we learn that Proctor has not been in church as frequently as one might expect. Hale wants to know why Proctor is "so absent", thus further hinting at Proctor's isolation from religious society.
Eventually, Proctor becomes fully isolated from the community as he is consigned to "the dungeon" and he has not laid eyes on his wife in "three months".