On July 19, 2026, a tragic rockfall on Mount Rainier’s Disappointment Cleaver route resulted in the death of climber Daihong Chen, 44, from Bellevue, Washington, and injuries to three others. The incident occurred around 3:30 a.m. at approximately 11,600 feet, as two unguided climbing groups totaling six climbers were ascending toward the summit. The Pierce County Medical Examiner’s Office confirmed Chen’s death due to multiple blunt-force injuries. The remaining climbers were assisted back to Camp Muir and subsequently evacuated for medical care. (outsideonline.com)
Disappointment Cleaver is Mount Rainier’s most frequented summit route, with approximately two-thirds of climbers attempting the mountain via this path. Despite its popularity, the route presents significant hazards, including crevasses, avalanches, falling ice, rockfall, and altitude-related illnesses. Veteran climbing guide Peter Whittaker, co-owner of RMI Expeditions, emphasized that even the most traversed routes on Rainier carry inherent dangers that, while manageable, cannot be entirely eliminated. (outsideonline.com)
The Disappointment Cleaver has a history of accidents, with climbers having been killed or injured by falling debris and avalanches. In 1981, an avalanche on the Ingraham Glacier claimed the lives of ten climbers and one guide from RMI Expeditions. (outsideonline.com)
Warmer temperatures have led to shifting conditions on the mountain. As winter snow melts, crevasses become more exposed, and glacial movements can introduce new risks. Whittaker noted that the thinning and retreating glaciers have made access more challenging, and the presence of loose volcanic rock contributes to persistent rockfall hazards. (outsideonline.com)
Climbers are advised to exercise heightened caution, stay informed about current conditions, and consider engaging experienced guides when attempting routes like the Disappointment Cleaver. The incident underscores the unpredictable and perilous nature of high-altitude climbing, where even well-traveled paths can present life-threatening challenges.