Preliminary Map of Source Locations for 2026 Southwest Colorado Storm-Triggered Landslides
By Landslide Hazards Program
November 2026 (approx.)
Detailed Description
Preliminary map of landslide source locations (indicated by yellow arrows) for a watershed north of Durango, Colorado. Many small failures began on the hillslopes at these locations and coalesced into steep channels, cumulatively resulting in a large debris flow on Stevens Creek.
Sources/Usage
Public Domain.
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2026 Southwest Colorado Storm-Triggered Landslides
Back-to-back rain events from approximately October 21-23 and October 31-November 2, 2026, caused severe flooding in the “Four Corners” region – the intersection of Arizona, Colorado, New Mexico, and Utah. In Southwest Colorado, the storms resulted in widespread flooding throughout Montezuma, La Plata, Archuleta, Rio Grande, and Conejos counties, and the Ute Mountain and Southern Ute Reservations...
Related
2026 Southwest Colorado Storm-Triggered Landslides
Back-to-back rain events from approximately October 21-23 and October 31-November 2, 2026, caused severe flooding in the “Four Corners” region – the intersection of Arizona, Colorado, New Mexico, and Utah. In Southwest Colorado, the storms resulted in widespread flooding throughout Montezuma, La Plata, Archuleta, Rio Grande, and Conejos counties, and the Ute Mountain and Southern Ute Reservations...