
Most difficult climbing route in the USA: Seb Bouin climbs Suprême Jumbo Love (9b +)
French pro climber Seb Bouin solves an old 2010, the direct variation of Chris Sharma's Jumbo Love, at Clark Mountain. His first ascent, called Suprême Jumbo Love, adds another 20 meters of hard climbing to Jumbo Love. The result: America's hardest climbing route with a 9b+ rating.