MOSCOW, Idaho — A fresh geophysical dataset is now available, giving researchers a detailed look beneath east-central Idaho. This release comes from the U.S. Geological Survey (USGS) and the Idaho Geological Survey (IGS), based at the University of Idaho.
Using low-flying aircraft with specialized sensors, the dataset captures aeromagnetic and radiometric data. These tools detect subtle changes in Earth’s magnetic field and measure natural radiation from different rock types. By analyzing these signals, scientists can create a clearer map of what lies underground.
“This data reveals hidden geological features,” said Claudio Berti, state geologist and IGS director. “By merging magnetic and radiometric signals, we can better identify rock types, refine our surface maps, and gain insights into the subsurface structures.”
This new data complements a 2022 USGS survey focused on the greater Idaho cobalt belt, enhancing our understanding of the region’s geology and its potential for critical minerals. You can explore the dataset through the Science Base Catalog here.
Interest in these minerals is spiking as the U.S. aims to lessen its dependence on foreign supplies. “Idaho has vast potential for critical mineral resources,” Berti noted. “These insights can guide further studies and assist researchers, industry professionals, and policymakers in their decisions.”
While this dataset aids mineral exploration, it doesn’t directly lead to mining activities. Instead, it serves as an important resource for groundwater studies, identifying geological hazards, and environmental planning. “The applications are far-reaching,” Berti explained. “We also use this data to understand fault lines and groundwater systems.”
This survey marks the first time high-resolution airborne geophysical data of this kind is publicly available for this area in Idaho, offering vital information previously accessible only to private firms.
As part of its mission, the IGS collects and shares geological information to support research, education, and informed decision-making in Idaho. Recent efforts have led to extensive mapping and data compilation in the region.
“This push for modern data is crucial,” Berti added. “Better data ultimately leads to better decisions, whether for resource management, hazard response, or water management.”
For ongoing updates on geophysical projects in Idaho, visit the USGS Earth MRI Viewer here.
