What was the title of Stephen King's 2009 novel about a town trapped under a dome?

Stephen King's 2009 novel about a town trapped under a dome is Under the Dome.

Scribner published Under the Dome on November 10, 2009. The story begins when an invisible, apparently impenetrable barrier suddenly surrounds Chester's Mill, Maine. The residents must confront isolation, dwindling resources and political conflict while trying to understand the dome.

King had worked on earlier versions of the idea decades before completing the novel. The finished book is one of his longest, with a large ensemble cast and multiple intersecting storylines.

The novel is distinct from the television series Under the Dome, which aired from 2013 to 2015. The series uses the same premise and many names but changes major plot elements, characters and the ending. The book's title refers directly to the physical barrier surrounding the town.