The River of Sands: The Au Sable – Trout, Flies and TechniquesFeatured Speaker for January – Josh Greenberg Josh Greenberg is the author of the captivating book, Trout Water, and is also the owner of Gates Lodge, Fly Shop and Guide Service on the Au Sable River in Grayling, MI.  His lodge is just a short distance from where Trout Unlimited…