
About
Mackay Wilderness River Trips, Inc. has operated week-long river trips through Idaho's River of No Return Wilderness for over 40 years. Our trips traverse almost 200 miles of roadless Wilderness. These are the most remote and sought after Wilderness river trips in the lower 48 states. Experiencing the pristine beauty of the mighty Main Salmon and its largest tributary, the Middle Fork, is life changing. We provide everything needed for a safe, comfortable and fun river and camping experience.
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Trips

Middle Fork Salmon River Rafting
A whitewater rafting vacation in Idaho is an experience you’ll never forget! We offer weeklong rafting trips on Idaho’s famed Middle Fork of the Salmon. This spectacular wilderness white water river is the Salmon River’s largest tributary. The crystal-clear free-flowing river is spring fed from high alpine meadows. The upper reaches of the Middle Fork River drainage drops rapidly through thickly forested alpine settings, then, aided by dozens of tributaries, it soon doubles in size becoming a rushing whitewater river with major rapids. As dense forest greenery gives way, the Middle Fork canyon alternates between grassy mountain meadows and sheer granite cliffs. During July, August and September, fly-fishing the Middle Fork of the Salmon is truly a world-class experience. This river is a blue ribbon “wild” cutthroat trout fishery.
Seasonality
Jun-Sep