MARQUETTE — This past summer, the U.S. Geological Survey began large-scale low-level airplane flights over the Upper Peninsula and northern Wisconsin. The goal of the project is to obtain high-resolution data on subsurface mineral structures and bedrock composition to depths of approximately 10,000 feet.

The data will be used to create two- and three-dimensional maps, which will help to better understand the geological structure at those depths. The geological surveys of the two states are working closely with the U.S. Geological Survey to interpret and create maps from the data.

“This project is part of a national initiative aimed at acquiring modern, high-resolution geophysical data. Unlike the outdated and limited-quality public data that exists for our region, this new data will have

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