Well-known for her novel The Shipping News and her masterful short stories (including “Brokeback Mountain”), Proulx has, at age 80, taken a different tack, sailing into the headwinds of a 700-plus-page novel. Barkskins follows the exploits and adventures of multiple generations of the Sel and Duquet (later renamed “Duke”) families. It also charts the progressively more destructive actions taken by the logging and timber industries over the course of the following centuries.