Oregon geologists offer expanded landslide database

PORTLAND, Ore. — Oregon geologists say they’ve released a new, expanded statewide database of landslide locations.

The state Department of Geology and Mineral Industries said Wednesday that more than 46,000 known landslide locations are included. The department hopes the tool will help increase the public’s understanding of where future slides may occur.

The new database compiles all the landslides that have been identified on published maps. An interactive feature makes locating landslides as easy as entering an address.

Engineering geologist Bill Burns says most of the nearly 20,000 landslides mapped since 2009 have come from mapping that used lidar, a tool that provides accurate high-resolution images of the earth’s surface. Burns says that when lidar mapping for the whole state is complete, geologists will have a much better understanding of landslides.

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The Statewide Landslide Information Database for Oregon (SLIDO) Release 3.0 is available as a free download, as web services, or for purchase on DVD. Learn more at: www.oregongeology.org/sub/slido/data.htm

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