The Logan River may be a sleeper among the West's more famous trout waters, but a late-summer trip to this northern Utah stream will produce lots of fish. August on the Logan is a great time for flyfishers to cast to the river's native Bonneville cutthroat trout, brown trout and rainbow trout with hopper patterns and small nymphs, such as beadhead Hare's Ears and Pheasant Tails. Spin-fishermen entice the Logan's trout with 1/8-ounce marabou jigs and standard spoons and spinners, such as the Rooster Tail. The Logan is full of trout in the 12- to 20-inch range. Biologists estimate there are about 3,000 fish per mile-not bad for a river that anglers can cast across in most places. Concentrate on the upper river for cutthroat trout. The middle section holds an equal mix of cutthroats, rainbows and browns. The lower river is mostly brown trout territory. The middle section is managed for catch-and-release only. River access is via Route 89 east of Logan. Contact: Utah Division of Wildlife Resources (801-538-4700).