Jim Miller (Ph.D., geology, University of Minnesota) is an Emeritus Associate Professor of Geology at the University of Minnesota Duluth. Formerly, he was a Senior Geologist with the Minnesota Geological Survey (1983-2008). His research specialty is the geology and mineral deposits of northeastern Minnesota. He has conducted geological research and led field trips for geologists and non-geologists for over 35 years. He retired from UMD in 2016 and currently resides in Thunder Bay, Ontario.