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![Hand holding black speckled rock](/sites/nrri.umn.edu/files/styles/article_lists/public/umd_news/img_0628.jpg?itok=4-WT6IYd)
DULUTH, Minn. -- It’s long been known that ilmenite – a high value iron-titanium oxide ore – is one of many valuable mineral deposits in northeastern Minnesota.
![Red logging truck hauling logs drives on a dirt road.](/sites/nrri.umn.edu/files/styles/article_lists/public/umd_news/istock_000001772101_medium.jpg?itok=N3W-H1EC)
NRRI joins consortium to brainstorm how to turn excess biomass into fuels
![Two women in white lab coats and safety glasses by a large machine.](/sites/nrri.umn.edu/files/styles/article_lists/public/umd_news/img_0560.jpg?itok=NtMINA5B)
Research expertise in wood biomass conversion and geomicrobiology have been added to the diverse knowledge base of UMD’s Natural Resources Research institute in the past few months.
![Woman is framed by machinery, holding a small brown disk](/sites/nrri.umn.edu/files/styles/article_lists/public/umd_news/img_0886.jpg?itok=7axfA306)
Solar and wind energy readily come to mind when talk turns to alternative energy options. But the renewable energy options are much broader – and more complex.
![Scientist in blue lab coat pours water into tube.](/sites/nrri.umn.edu/files/styles/article_lists/public/umd_news/ballastsamples1.jpg?itok=nQnpPo-b)
Duluth-Superior Harbor, at the most pristine end of the Great Lakes, is the freshwater port most heavily invaded with non-native species. It’s easy to understand why.
![Close up view of the ends of logs](/sites/nrri.umn.edu/files/styles/article_lists/public/closeup2.jpg?itok=bQCfj8BE)
Brian Brashaw recalls being under a wooden bridge years ago and seeing the cross beam squish down about four inches when a big gravel truck passed over it.
![Blue bird eggs in a nest](/sites/nrri.umn.edu/files/styles/article_lists/public/birdeggshorz.jpg?itok=j8mYmjO5)
It wasn’t what she was looking for, but noting the presence of the golden-winged warbler was a special treat for Alexis Grinde this spring.
Final Report: Pumped Hydro Energy Storage (PHES) Using Abandoned Mine Pits on the Mesabi Iron Range of Minnesota, November 2011
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