Cutting through Idaho's rugged Salmon Mountains before emptying into the Salmon River, the Middle Fork drops 3,100 feet in its 110 miles, making the river a continuous string of class III and IV rapids—with some hot springs, to boot.
Over its course, the Middle Fork's douglas fir- and lodgepole pine-lined shores give way to the steep walls of Impassable Canyon. Golden eagles, bears and bighorn are found in this wild terrain, nestled into the Frank Church-River of No Return Wilderness Area.
Award-winning ECHO River Trips offers five-to-six day all-inclusive rafting trips down the entire Middle Fork beginning at the end of May. Prices range from $1,445 to $2,095 per person for groups up to 23 people. As flow drops off in July and August, the first 25 miles become impassable, but slower water for the remaining distance makes trips more family-friendly.