Wild Water Weight Forward 7-Weight Mahogany Intermediate Fly Fishing Line, 90 ft. Fly Fishing Line Length - fly line is 90 ft or 30 yards. Mahogany fly line available in WF7, WF8, WF9, and WF10 Perfect for when you want your fly to go 10-20 feet deep in open water or go deeper than a floating line in fast moving water. Weight forward taper - better distance and control in windy conditions