Low-level helicopter flights to image geology over NE Idaho and NW Montana

The flights are a collaborative effort between the U.S. Geological Survey's Earth Mapping Resources Initiative and the Idaho Geological Survey and the Montana Bureau of Mines and Geology, and are part of a national effort to modernize mapping of the nation's geology.

"Partnership with state surveys helps accomplish national goals like mapping the critical minerals the U.S. needs. The Idaho Geological Survey and the Montana Bureau of Mines and Geology are helping with the work of the nation -- and adding to state knowledge crucial to water resources, hazards and the resource economy," said Jamey Jones, science coordinator for the U.S. Geological Survey's Earth Mapping Resources Initiative.

"The Idaho Geological Survey is looking forward to revisiting the regional geology of the area through detailed mapping and field-based investigations, and providing a modern take on this historic, world-class mineral district, said Claudio Berti, State Geologist and Director of the Idaho Geological Survey.

Known critical mineral commodities in the region include, zinc and antimony, with potential for rare earth elements and tungsten, all of which are on the List of Critical Minerals maintained by the USGS as essential for the U.S. economy and national security. There is also significant potential for additional discovery of copper, silver, lead, and molybdenum in the survey region.

The USGS has contracted with Woolpert and New Resolution Geophysics to collect the airborne data. Their small helicopter aircraft will be equipped with an elongated "stinger" that houses sensors collecting data and extends in front of the main cabin. These scientific instruments are completely passive with no emissions that pose a risk to humans, animals, or plant life. No photography or video data will be collected. The aircraft will be flown by experienced pilots who are specially trained and approved for low-level flying. These pilots work with the FAA to ensure flights are safe and in accordance with U.S. law. The surveys will be conducted during daylight hours only.

Flights will be based out of the regional airport Coeur D'Alene Field (KCOE).

Funding through the Infrastructure Investment and Jobs Act has facilitated coverage of such a large area.

The survey fits into a broader effort by the USGS, the Idaho Geological Survey and the Montana Bureau of Mines and Geology, and other partners-including private companies, academics and state and federal agencies-to modernize our understanding of the nation's fundamental geologic framework and mineral resources.

This effort is known as the Earth Mapping Resources Initiative, and it includes airborne geophysical surveys like this one, geochemical reconnaissance surveys, topographic mapping using LiDAR technology, hyperspectral surveys, and geologic mapping projects.