John Wesley Powell River History MuseumJohn Wesley Powell River History MuseumKenton “Factor” Grua spent more than thirty years exploring Grand Canyon from its river, trails, and nearly inaccessible backcountry. A gifted boatman, explorer, teacher, and relentless questioner, Kenton possessed an intense curiosity about how the Canyon worked and an equally strong desire to experience it for himself.
Born in 1950 and raised in Vernal, Utah, Kenton first encountered whitewater on a Green River trip with his father when he was twelve. By 1969 he was working for Hatch River Expeditions in Grand Canyon and soon joined Martin Litton’s Grand Canyon Dories. The wooden boats suited him. Kenton became one of the Canyon’s most accomplished dorymen, but running the river was only one way he came to know the place.
After years of scouting possible routes from the river, Kenton set out in 1977 to walk the entire length of Grand Canyon. Inspired in part by Colin Fletcher’s The Man Who Walked Through Time, Kenton wanted to continue beyond the boundaries of Fletcher’s celebrated journey and travel from one end of the Canyon to the other. Five weeks after beginning near Lees Ferry, he reached the Grand Wash Cliffs, becoming the first person known to complete a through-hike of the entire Grand Canyon. Characteristically, Kenton made little effort to publicize the achievement.
Six years later, he traveled the same Canyon at a radically different pace. During the extraordinary high water of 1983, Kenton, Rudi Petschek, and Steve Reynolds launched the wooden dory Emerald Mile into the swollen Colorado. Rowing through the night, surviving a flip in a massive Crystal Rapid, and riding flows released from Glen Canyon Dam, the three reached the Grand Wash Cliffs in 36 hours and 38 minutes. Their record stood for more than three decades and later became the subject of Kevin Fedarko’s The Emerald Mile.
Yet Kenton’s legacy reaches beyond extraordinary feats. In 1988, believing working guides needed a voice in decisions affecting Grand Canyon and the Colorado River, he helped bring the boating community together to establish Grand Canyon River Guides and became its first president. The organization grew into an enduring advocate for guides, river history, and the Canyon itself.
Friends called Kenton “Factor” because wherever he went, he was an element that had to be factored in—intense, inventive, endlessly curious, and difficult to predict. But those who traveled with him also remembered his patience and generosity: a guide who took the extra time to help others experience the Canyon fully.
Kenton Grua did more than run Grand Canyon. He walked it, studied it, questioned it, advocated for it, and spent his life helping others know it.
Tuesday through Saturday, 10:00am – 5:00pm
Adults (18+)
Seniors (62+)
Children (7-17)
Family
$8
$6
$3
$25
Free admission for children under 7, museum members, and Green River residents.