Skip to main content

Map data and Unmanned Aircraft System imagery from the May 25, 2014 West Salt Creek rock avalanche in western Colorado


Start Date
End Date
Publication Date


Coe, J.A., Baum, R.L., Allstadt, K.E., Kochevar, B.F., Schmitt, R.G., Morgan, M.L., White, J.L., Stratton, B.T., Hayashi, T.A., and Kean, J.W., 2016, Map data and unmanned aircraft system imagery from the May 25, 2014 West Salt Creek rock avalanche in western Colorado: U.S. Geological Survey data release,


On May 25, 2014, a rain-on-snow induced rock avalanche occurred in the West Salt Creek Valley on the northern flank of Grand Mesa in western Colorado. The avalanche traveled 4.6 km down the confined valley, killing 3 people. The avalanche was rare for the contiguous U.S. because of its large size (54.5 Mm3) and long travel distance. To understand the avalanche failure sequence, mechanisms, and mobility, we mapped landslide structures, geology, and ponds at 1:1000-scale. We used high-resolution, Unmanned Aircraft System (UAS) imagery from July 2014 as a base for our field mapping. Here we present the map data and UAS imagery. The data accompany an interpretive paper published in the journal Geosphere. The full citation for this interpretive [...]


Attached Files

Click on title to download individual files attached to this item.
“Layer files used for symbology in ArcMap”
65.89 KB application/zip

“Aerial Imagery”
1.86 GB application/zip
5.2 MB application/zip
“Metadata Files for Data Layers in Geodatabase”
138.49 KB application/zip
“Map Document”
795.5 KB application/x-tika-msoffice


These data were used to interpret the rock avalanche failure sequence, mechanisms, and mobility. Map data include structures (i.e., faults and folds) created by the rock avalanche, geologic units and deposits, the basal-slip surface for the rock slide, and ponds and springs. The orthorectified mosaic of Unmanned Aircraft System (UAS) imagery used for field mapping is also included.

Additional Information


Type Scheme Key
doi doi:10.5066/F74J0C55

Item Actions

View Item as ...

Save Item as ...

View Item...