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Clackamas County Updating Landslide Risk Maps

Clackamas County has teamed up with the Oregon Department of Geology and Mineral Industries and other municipalities to create up-to-date geologic maps. 

It’s an effort to better identify areas at risk of landslides and other natural threats. 

The new maps are made using a technology known as LIDAR.  That stands for Light Detection and Ranging — a remote sensing method used to examine the surface of the Earth. 

Jay Wilson is Clackamas County’s hazard mitigation coordinator.  Wilson was a guest Tuesday on OPB’s Think Out Loud.

He explained to Think Out Loud host Dave Miller the difference between regular maps and the new ones.

Dave Miller asked Wilson if all Oregon counties have to incorporate these maps into their comprehensive plans, as Clackamas County is working to do. He said not all the counties are doing it at the same time because of limited resources.

The map below was created by the EarthFix team using data from DOGAMI and the Washington Dept. of Natural Resources.

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