cg' I don't think you can answer that question specifically. There are too many variables. Water temperature, speed, and color are big factors in fish movement pace. So is the maturity of the fish and how close they are to spawning, which can make some of them travel at a faster pace. I have read studies that indicate anadromous steelhead and salmon are capable of swimming up large rivers with moderate flows (such as the Columbia, Willamette, and parts of the Snake) about 25 miles per day. And on the other side of the coin they can loiter around in an area of such rivers, or in the lower ends of cooler tributaries, for days before they get the urge to take off upriver again. It's just too complicated and unpredictable to be very accurate. However, from tagged fish studies it was estimated that these fish average about 7 miles per day up these largest watersheds. Hope that helps.