One person remains missing in the Grand Canyon after flash floods on Saturday swept through popular hiking areas, leading to the rescue of 80 individuals and the recovery of two bodies. The deluge, which occurred around 2:30 p.m. local time near the Colorado River, inundated trails and washed hikers and backpackers off their paths.
Search crews utilized night vision equipment to locate stranded hikers. By sunset on Saturday, 45 people had been rescued, with an additional 37 evacuated on Sunday. Authorities have been working to account for missing persons by cross-referencing the park's permit system and vehicle license plates. As of Monday evening, officials stated they had no reason to believe anyone else was missing beyond the one individual.
Infrastructure Damage and Restrictions
The flash flooding caused significant damage to the Grand Canyon's primary water pipeline, a critical 12.5-mile system constructed in the 1960s and currently undergoing a $208 million rehabilitation. The pipeline serves both visitors and approximately 1,600 residents of Grand Canyon Village. Officials anticipate extensive damage to miles of the pipeline. While the park has water storage tanks on the South Rim, they will not be refilled until the pipeline is repaired. Currently, there is enough water in storage to last about two weeks. In response to the damaged infrastructure and the potential for further flooding, tourists are barred from staying at lodges and hotels within the park, and emergency water restrictions have been imposed on residents.
Witness Accounts and Casualties
Witnesses described a sudden and powerful surge of water. Hiker Daniel Evans recounted experiencing multiple rain events before a severe 30-minute downpour that unleashed muddy torrents. He noted seeing large amounts of debris and logs moving downstream. Gabe Bergemann and his family were at the Phantom Ranch when a "whole monsoon" hit the area. They were among about 60 people evacuated across a footbridge, which was destroyed by floodwaters about 10 minutes after their crossing.
Two individuals have been confirmed deceased. John Giusti, a 53-year-old chiropractor from Texas, was on a trip with friends when the tragedy occurred. His wife described it as a "lifetime dream exploring the majesty of the Grand Canyon when tragedy struck." A second body was recovered on Monday, though details about this victim have not yet been released.
Environmental Factors and Risks
The flash floods occurred in a region that experienced one to two inches of rain within half an hour. This area is particularly susceptible due to its steep, rocky terrain and its history of recent wildfires. The Dragon Bravo fire scar, from a lightning-caused wildfire in July 2025, left the landscape barren, allowing runoff to flow more rapidly. The canyon's topography naturally funnels water, intensifying rainfall into dangerous flash floods.
The National Weather Service noted that the current monsoon season is experiencing intense rainfall partly due to a strong El Nino, which increases water vapor in the atmosphere over the southwestern United States. Forecasters warned that additional flooding could be possible throughout Monday night. Visiting the Grand Canyon during the summer monsoon season carries inherent risks of flash flooding, as clear weather can quickly transition to thunderstorms and heavy downpours.