What is the book montana 1948 about

Montana 1948 is an intriguing novel written by Larry Watson. Montana 1948 is a novel based on a 12 year old boy named David Hayden; whose story is being told in 1st person perspective. He is an adult, however he tells the story as he saw it from when he was 12 years old. The story is written as though David Hayden is  recounting back on his past, to where he lived in a small town named Bentrock, in Mercer County, Montana.