Utah
» Introduction to Landslide Activities in Utah
The 1983 Thistle landslide, the most costly landslide in U.S. history, blocked U.S. Highway 6, Union Pacific rail lines, and the Spanish Fork River which inundated the town of Thistle.
Significant economic losses are associated with landslides in Utah. For this reason, the Utah Geological Survey (UGS) has compiled several landslide inventories for the state. These inventories vary in purpose and magnitude, but all are useful to understanding the nature of landsliding in Utah.
» Landslide Inventories for Utah
In 2006, this rapidly moving earthflow in South Weber, Utah ran downslope into the back of this house.
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Landslide Inventory Maps
Includes 46, 1:100,000-scale maps that cover Utah. These maps were originally published from 1991-1993 in hard copy format and available for downloading in Adobe PDF format. The UGS is currently updating these maps and integrating them into GIS.
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Landslide Susceptibility Map
Includes a 1:500,000-scale map with accompanying text. Adobe PDF format available for downloading. GIS data is available on the compact disk.
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The Preliminary Landslide History Database of Utah, 1850-1978
A searchable database that provides mostly non-technical information on landslide events in Utah from 1850 to 1978. The database was compiled primarily with information from newspaper records.
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Regional Geologic Maps
Variously scaled geologic maps that may include landslide features.
For more information about Geologic Hazards in Utah, please visit the Utah Geological Survey's Geologic Hazards website: http://geology.utah.gov/utahgeo/hazards/index.htm
For more information about any of these publications, please visit the UGS Map and Bookstore website.
For more information about the Utah Geological Survey, please visit our website: http://geology.utah.gov
