Colorado Geological Survey

Colorado Geologic Survey, Colorado School of Mines

Officials continue to assess a mudslide southwest of Carbondale. That’s where a miles long flow may have killed three men, and another there’s a risk of another slide coming down. Here in the Roaring Fork Valley, mudslides are also a factor-- especially in the Glenwood Springs area. Jonathan White is Senior Engineering Geologist with the Colorado Geologic Survey in Golden. He spoke with APR’s Elise Thatcher on how common mudslides are.

USGS

The area where the Collbran mudslide happened has seen similar slides in the past. Geologists say relatively weak rock and steep terrain create a recipe for such natural disasters. Still, Colorado in general is less vulnerable to slides than wetter areas, like the west coast. Aspen Public Radio's Marci Krivonen reports.

The Colorado Geological Survey began mapping landslides near Collbran in the 1980’s. They discovered the area where this debris flow happened was prone to slides.