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Ian Yuh

Ian is a geologist with the GMEG Science Center in Portland, Oregon. Ian received B.S. and M.S. degrees in Earth Sciences from the University of California San Diego. Presently, his effort focuses on geologic mapping in the Columbia River Gorge and Columbia Basin.

Ian earned his B.S. and M.S. degrees in Earth Sciences—geology track—from Scripps Institution of Oceanography, University of California San Diego, where he focused on understanding the geologic history recorded by mantle xenoliths from the Simcoe Mountains Volcanic Field, Washington. Since joining the USGS in 2021, he has worked on creating geologic and geomorphic maps in the Columbia River Gorge and Columbia Basin using geographic information systems (GIS), remote sensing, field work, and geochemical analyses. 

Professional Experience

  • 2022- present, Geologist, Geology Minerals Energy and Geophysics Science Center, Portland, OR

  • 2021-2022, Student Trainee (Physical Science Technician), Geology Minerals Energy and Geophysics Science Center, Portland, OR

  • 2021, Teaching Assistant, University of California San Diego

Education and Certifications

  • M.S., Earth Sciences—geology track, University of California San Diego, 2021

  • B.S., Earth Sciences—geology track, University of California San Diego, 2020

Affiliations and Memberships*

  • Geological Society of America

Science and Products

Geospatial database for the geomorphic map of the Umatilla River corridor, Oregon

This map portrays the distribution of landforms along the Umatilla River in northeastern Oregon and covers a corridor 127 kilometers (km) long from the confluence of the Umatilla River with the Columbia River upstream to Meacham Creek. The map encompasses the valley bottom and extends about 1 km up the adjoining hillslopes. Map data are intended to support water quality and fisheries enhancement e
By
National Cooperative Geologic Mapping Program

X-ray Fluorescence Geochemistry of Columbia River Basalt Group Rocks in the Western Columbia River Gorge

This table contains geochemical data collected for whole-rock samples from the Columbia River Basalt Group in the western Columbia River Gorge in Oregon and Washington. Most samples were collected by Russell C. Evarts and Richard M. Conrey from 2002 to 2014. Samples were collected during traverses along roads, streams, ridgecrests, and other areas as part of ongoing geologic mapping. Additional sa
By
National Cooperative Geologic Mapping Program, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geomorphic map of the Umatilla River corridor, Oregon

This map portrays the distribution of landforms along the Umatilla River in northeastern Oregon and covers a corridor 127 kilometers long from the confluence of the Umatilla River with the Columbia River upstream to Meacham Creek. The map encompasses the valley bottom and extends about 1 kilometer up the adjoining hillslopes. Map data are intended to support water quality and fisheries enhancement
By
Geology, Minerals, Energy, and Geophysics Science Center

Science and Products

Geospatial database for the geomorphic map of the Umatilla River corridor, Oregon

This map portrays the distribution of landforms along the Umatilla River in northeastern Oregon and covers a corridor 127 kilometers (km) long from the confluence of the Umatilla River with the Columbia River upstream to Meacham Creek. The map encompasses the valley bottom and extends about 1 km up the adjoining hillslopes. Map data are intended to support water quality and fisheries enhancement e
By
National Cooperative Geologic Mapping Program

X-ray Fluorescence Geochemistry of Columbia River Basalt Group Rocks in the Western Columbia River Gorge

This table contains geochemical data collected for whole-rock samples from the Columbia River Basalt Group in the western Columbia River Gorge in Oregon and Washington. Most samples were collected by Russell C. Evarts and Richard M. Conrey from 2002 to 2014. Samples were collected during traverses along roads, streams, ridgecrests, and other areas as part of ongoing geologic mapping. Additional sa
By
National Cooperative Geologic Mapping Program, Geology, Minerals, Energy, and Geophysics Science Center, Geosciences and Environmental Change Science Center

Geomorphic map of the Umatilla River corridor, Oregon

This map portrays the distribution of landforms along the Umatilla River in northeastern Oregon and covers a corridor 127 kilometers long from the confluence of the Umatilla River with the Columbia River upstream to Meacham Creek. The map encompasses the valley bottom and extends about 1 kilometer up the adjoining hillslopes. Map data are intended to support water quality and fisheries enhancement
By
Geology, Minerals, Energy, and Geophysics Science Center

*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government

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