This is a phenomenal, long-overdue book, outlining many of Saskatchewan's best rivers. (Sturgeon-Weir, Montreal, Churchill, Foster, Paull, Haultain, Clearwater, William, Wathaman, Geike, Cree, Waterfound, Fond du Lac, MacFarlane, and Porcupine).
This book gives you a great comparison of these rivers, and much detailed information on each route.