What is the main setting in the novel, All This Time?

The novel's main setting is Kyle's hometown, which remains unnamed throughout the story. Specific settings include a grocery store, ice cream shop, and a movie theater. In one scene, he stops by the football field on his way home from the grocery store. Kyle and Marley also spend time at a winter festival in the downtown area, and this setting is described in some detail. Kyle recently graduated from Ambrose High School, which might mean the town is also named Ambrose.