Heavy rain triggers mudslides, strands visitors in Black Canyon park
Mudslides buried East Portal Road under up to 6 feet of rock and mud, stranding 21 visitors near Black Canyon. East Portal Road, the campground and picnic area were closed.
Heavy rain buried East Portal Road in Black Canyon of the Gunnison National Park under boulders, rocks and mud on July 16, leaving 21 day trippers, campers and anglers stranded at the bottom of the canyon until responders reached them. A thunderstorm around 5 p.m. over Curecanti National Recreation Area triggered at least three major mudslides, and the debris piled as high as six feet in places.
The slides covered significant stretches of the road and spread into the East Portal campground and much of the East Portal picnic area. Responders were on scene by 5:45 p.m., and no injuries were reported. Park officials closed East Portal Road, the campground and the picnic area until assessments and repairs could be completed, and they said the road was closed to all traffic, including pedestrians and bicyclists.
There was no estimate yet for the total damage, repair costs or reopening date. For anyone headed into the Gunnison-area backcountry or planning a stop at East Portal, the practical move is to treat that corridor as a weather-sensitive reset point rather than a fixed part of the trip. Check the park’s current conditions before leaving town, and assume afternoon thunderstorms can change access fast in the canyon.
The closure also fits a larger pattern in Black Canyon, where burn scars have made the terrain more vulnerable to runoff and debris flows. In July 2025, the South Rim Fire burned about 85% of the South Rim, a scar that left steep slopes exposed above drainage channels feeding down toward the roadway.
That combination of recent fire and sudden rain is exactly what can turn a day drive into a stranded-visitor problem in a matter of minutes. East Portal was not just wet after the storm; it was cut off by fresh debris, and the road, campground and picnic area stayed shut while crews worked through the cleanup.
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