Images

Large landslides on the southwest side of Mt. King George. The main debris lobe on the right is approximately 1000 m wide. The elevation difference between the peak and the glacier is approximately 1900 m. Photo courtesy of Yukon Geological Survey.

Seracs in an icefall on the east side of Mt. Vancouver (4812 m), toppled by shaking. Field of view is approximately 3.5 km wide. Photo courtesy of Yukon Geological Survey. 

Snow avalanche on the north side of Mt. King George. The debris lobe is 1800 m long and runs up onto the hillside across the valley. Photo courtesy of Yukon Geological Survey. 

Landslides on the west side of Mt. King George. The central debris lobe is 500 m wide. Photo courtesy of Yukon Geological Survey.

 Large snow avalanche in valley east of McArthur Peak. Debris lobe is 1500 m wide. Photo courtesy of Yukon Geological Survey. 

Snow avalanches in the valley on the east side of McArthur Peak. Photo courtesy of Yukon Geological Survey.

Landslides and avalanches on the east side of McArthur Peak. The left-hand debris lobe is 1100 m wide, and the right-hand debris lobe is 1500 m wide. The elevation difference between the peak and the glacier is approximately 1500 m.  Photo courtesy of Yukon Geological Survey.

Collapsed snow bridges on crevasse field on the Hubbard Glacier between McArthur Peak and Mt. King George. Photo courtesy of Yukon Geological Survey. 

Collapsed snow bridges on crevasse field on the Hubbard Glacier between McArthur Peak and Mt. King George. Photo courtesy of Yukon Geological Survey. 

Large landslide on the southwest side of Mt. King George. The main debris lobe is 1800 m wide, and material would have travelled approximately 6 km from the source area (triangular scar) in the background. Photo courtesy of Yukon Geological Survey.

Animation of Sentinel-1 radar backscatter satellite imagery from November 28^th and December 9^th, 2025, showing the changes in surface roughness after the M7.0 Hubbard Glacier Earthquake. The lighter regions have rougher surface areas. The colored points correspond to preliminary mapping of potential mass movements.

Landsat 9 true color, pan-sharpened satellite image collected on December 10, 2025, showing landslides triggered by the M7.0 Hubbard Glacier Earthquake on the slopes of Mount King George. Landslide points were mapped from SAR change detection.

A) Map of Sentinel-1 radar surface roughness change with photo locations and azimuths. B) Landsat 8 optical imagery from December 11, 2025, with photo locations and azimuths. 

Map showing porphyry copper deposits and porphyry copper prospects in and near the Lower Colorado River Basin. 

Schematic flowchart showing relations between porphyry copper mining, drought, water resources, ecosystems, health, and economic factors in the Lower Colorado River Basin and adjoining areas

Characterizing geochemistry, provenance, and age of river terrace deposits to identify potential changes in the distribution, concentration, and sources of critical minerals and contaminants through the geologic past and into the present following mining activities. 

Coordinates of photographer: Latitude: 35° 44’ 16.08” N Longitude: 82° 8’ 20.04” W

Date: 10/17/24

Caption: Damage caused by a large mudflow in Buck Creek near Marion, NC.

Taken during Hurricane Helene LASER response

Coordinates of photographer: Latitude: 35° 33’ 21.75” N, Longitude: 82° 19’ 0.9” W

Date: 10/17/24

Caption: Damage caused by mudflows into Flat Creek near the Garren Creek Fire Station. Some of the initiating landslides are visible in the distance, upper left of photo.

Taken during Hurricane Helene LASER response 

U.S. Bureau of Reclamation map of the Colorado River Basin accessed on October 15, 2024, at URL: CRBSmap.jpg (2550×3300) (usbr.gov)

Coordinates of photographer: Latitude: 35° 27’ 42.48” N Longitude: 82° 16’ 57.75” W

Date: 10/13/24

Caption: Multiple landslides and mudflows in Bat Cave, NC

Taken during Hurricane Helene LASER response 

Coordinates of photographer: Latitude: 36° 19’ 56.508” N Longitude: 81° 44’ 56.148” W

Date: 10/13/24

Caption: Landslide and flood damage near Zionville, NC.

Taken during Hurricane Helene LASER response