Utah Pro

I found this good fly fishing river article at  Utah.com It has good info and talks highly of the Logan River.  I’m not sure about the 37 3/4 lb trout but who knows.  It is true that you might see elk and deer up the canyon which is always fun.  The only thing I want to stress is YOU CAN catch a lot of fish during the snow run-off :

Logan River is a blue-ribbon trout stream – one of the best in the Intermountain Region. It comes out of a canyon to the northeast of Logan and is accessible via US Hwy 89. The river provides about 30 miles of easily accessible, quality roadside trout fishing.

For more information contact the Cache Valley Visitors Bureau.

Brown and rainbow trout are commonly caught on the lower river and in the impoundments, which are called First, Second and Third dams. Some years ago a 37 3/4-pound brown trout was pulled from First Dam; nice browns are occasionally caught in the lower river but fish of that size are not expected today. The impoundments are stocked heavily with catchable rainbows for summer fishing and are great places to fish with kids.

Above the impoundments the river is primarily a wild trout stream. Browns and cutthroats both reproduce well in its crystal clear waters. Cutthroats are dominant in the higher reaches.

The Logan is a wonderful fly fishing stream. Caddis flies are common and trout feed on them heavily. Elk hair and other standard caddis imitations are usually good beginning about mid-July. Blue-wings and midge patterns also work well, even when the weather turns cold. Standard nymph patterns like pheasant tail, chamois caddis and cased caddis are very effective. Fall is one of the best times to go after big browns on the river because browns spawn here in the late fall and early winter.

The river is virtually unfishable from late May through most of June because of snowmelt runoff.

Special regulations
Regular Utah trout and whitefish regulations are in effect from Card Canyon Bridge downstream to Cutler Marsh, including all 3 impoundments: The trout limit is 4 fish.

From Card Canyon Bridge upstream to the bridge at Red Banks Campground, including all tributary streams in between: Artificial flies and lures only, trout and whitefish (in aggregate) limit, 2.

From the highway bridge at Red Banks upstream to the Idaho state line, including all tributaries: Closed January 1 through 6 a.m. on the second Saturday of July; trout and whitefish (in aggregate) limit, 2.

For information and discussion about fishing in Utah visit bigfishtackle.com