
A rockfall on Mount Rainier’s Disappointment Cleaver route killed a local Washington climber and injured three others early Sunday, July 19. It struck two independent parties climbing without guides, low on the mountain’s standard summit line.
Six climbers were caught in the rockfall at approximately 11,600 feet (3,536 meters) at around 3:30 a.m., a Mount Rainier National Park spokesperson said. The Tacoma News Tribune, citing park sources, placed the event just after 2:30 a.m. Three of the six were hurt and survived. Two sustained minor injuries, and one was seriously hurt and flown to a medical facility. The fourth climber died at the scene.
The Pierce County Medical Examiner’s Office identified her as Daihong Chen, 44, of Bellevue, Washington, and determined she died of multiple blunt-force injuries. Chen’s husband, Bryan Digel, told The Seattle Times she had summited more than 100 peaks, including Rainier several times, and had learned to climb after joining The Mountaineers in 2014. None of the six were climbing with a guide service.
Roughly 10 days after the accident, the park closed its investigation. Kristen Tull, Mount Rainier National Park’s public affairs specialist, wrote to The Tacoma News Tribune that the incident was determined to be due to “naturally occurring rockfall.” The park released no further findings.
Where Mount Rainier Rockfall Concentrates on the DC

Climbers call it the DC. It is Rainier’s standard summit path, rebuilt and maintained through each season by the mountain’s permitted guide services, and it carries more traffic than every other route on the peak combined. Climbing ranger Stefan Lofgren told The Tacoma News Tribune that close to 6,000 people climb it annually. Peter Whittaker, co-owner of RMI Expeditions and a guide with more than 50 years and 256 Rainier summits behind him, puts the DC’s share at approximately 66% of all summit attempts on the mountain.
Popularity is not the same as safety. The route runs roughly nine miles one way with about 9,000 feet of gain, and the American Alpine Club lists its hazards as crevasses, avalanches, icefall, rockfall, and altitude illness. Fatalities remain statistically very low. Lofgren said they average fewer than two per season across a route that sees thousands of climbers.

The accident happened low on the cleaver, in terrain Rainier’s climbing rangers had flagged six days prior. A July 15 route update described the traverse from the ladder above Ingraham Flats out to the base of the cleaver as having “significant overhead hazards,” telling teams to move fast and limit their exposure. Rangers also warned climbers not to stop at all between Cathedral Gap and Ingraham Flats, and to inspect any rest spot by looking up first.

The Response
Jason Houck, 48, of Issaquah, Washington, was descending with his 17-year-old son when the rockfall struck a group he estimated at 100 vertical feet below them, on the scree near the bottom of the cleaver. Houck told The News Tribune that he and his son waited roughly an hour while rangers brought in a helicopter and short-hauled a climber with a broken leg off the mountain, around 7:45 a.m. Rangers then radioed parties waiting above the accident site to descend while the helicopter returned for the body recovery.
The park later said the uninjured climbers were assisted back to Camp Muir and flown with their equipment to the park’s helibase, where they received medical care before returning to their vehicles. It was Houck’s fourth climb of the Disappointment Cleaver route. He told the paper it will be his last.
What Climbers Should Know
Late July is an active and busy time on the DC route. As the summer solar rays melt the snow and ice off the ridge, the rock beneath is left loose and unsupported. The rangers’ July 13 report described the cleaver as roughly half snow and rock, with a warm high-pressure system moving in and the expectation that it would go mostly rock within days. That report remains the most up-to-date DC conditions the park has published.
The guidance rangers gave before the accident is the same guidance they would give today: start early, wear a helmet, move continuously through overhead-hazard terrain, and never take a rest break somewhere you have not looked up first. Route conditions on the volcano change daily and sometimes hour to hour. Climbers should always check in at the Paradise Wilderness Information Center for current beta before committing to a plan.

The climber who was killed was the wife of a close friend of mine (Bryan Digel). Devastating news. They were all very experienced climbers.
We are so sorry to hear that. Bryan and his family and friends are in our thoughts.