Who is the narrator, can she or he read minds, and, more importantly, can we trust her or him?
Third Person (Omniscient)
Able to zoom back and forth in time with ease, or move seamlessly from a flashback into the person's present-day testimony, our narrator is about as omniscient as they come. In fact, sometimes s/he just floats away from the characters and gives us a bird's eye view of what's happening at the level of the town, or even the whole island.
Take, for example, when a snowstorm basically causes mass chaos:
On Mill Run Road Mrs. Larsen of Skiff Point ran her husband's DeSoto into a ditch. Arne Stolbaad overloaded his wood-burning stove and ended up with a chimney fire. The volunteer fire department was called out by a neighbor, but the pumper truck driver, Edgar Paulsen, lost traction on Indian Knob Hill and had to halt to put on tire chains. In the meantime Arne Stolbaad's chimney fire expired; when the firemen showed up at last he expressed to them his delight at having burned clean the flue creosote. (17.2)
(By the way, that's just a small snippet of the details we get about Superstorm San Piedro '54—those kinds of details go on for several paragraphs.)
So, you get our point—our narrator is high in the sky (where apparently it's snowing a lot), looking down on all the characters and weaving from location to location and mind to mind (often using free indirect discourse to take us into characters' thoughts) and from past to present. Whew, and we're tired just thinking about walking through all that snow.