Rocketing Into the Grand Canyon’s Great Unknown

IF YOU EVER take a guided river trip through the Grand Canyon, your guides are likely to tell you the story of Kenton Grua, Rudi Petschek, and Steve “Wren” Reynolds. These men are legends in the tight-knit fraternity of canyon boatmen, largely because of an adventure they embarked on in late June of 1983, when they defied common sense and the National Park Service and set off, at night, to attempt a record-breaking speed run down the Colorado River in a 17-foot wooden dory called the Emerald Mile.

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