The Big Sky is the first of A. B. Guthrie Jr.'s epic adventure novels set in the American West. Here he introduces Boone Caudill, Jim Deakins, and Dick Summers: traveling the Missouri River from St. Louis to the Rockies, these frontiersmen live as trappers, traders, guides, and explorers.

Caudill is a young Kentuckian driven by a raging hunger for life, longing for the blue sky and brown earth of big, wild places. Caught up in the freedom and savagery of the wilderness, he becomes an untamed mountain man, whom only the beautiful daughter of a Blackfoot chief dares to love.

With The Big Sky, Guthrie presents an unforgettable portrait of a spacious land and a unique way of lie.