Professor Charles “Carlos” Plummer grew up in the shadows of volcanoes in Mexico City. There, he developed a love for mountains and mountaineering that eventually led him into geology. He received his B.A. degree from Dartmouth College. After graduation, he served in the U.S. Army as an artillery officer. He resumed his geological education at the University of Washington where he received his M.S. and PhD degrees. His geologic work has been in mountainous and polar regions, notably Antarctica (where a glacier is named in his honor). He taught at Olympic Community College in Washington before joining the faculty at California State University, Sacramento. At CSUS he taught optical mineralogy, metamorphic petrology and field courses before his semi-retirement. He continues to teach introductory courses. He flies airplanes, skis, and recently became a certified open water SCUBA diver.

Professor Emeritus of California State University at Sacremento, David McGeary was born and raised in central Pennsylvania, learning to love the Nittany Lions as well as shoofly pie for breakfast. He earned his B.S. degree at Williams College, M.S. at University of Illinois, and PhD at Scripps Institution of Oceanography. He helped pay for grad school by teaching scuba diving. David has been married to his wife for more than 30 years, has two grown sons, and a handmade house he built with his brother on 10 country acres. He taught geology at California State University for more than 23 years, specializing in physical geology, sedimentary petrology, oceanography, and field methods. David McGeary retired from teaching in 1992 and from textbook writing in 1995. His activities today are non-geological -- tending his house and land, traveling, carpentry, blacksmithing, and acting in community theatre.

Professor Diane Carlson grew up on the glaciated Precambrian shield of northern Wisconsin and received an A.A. degree at Nicolet College in Rhinelander and her B.S. in geology at the University of Wisconsin at Eau Claire. She continued her studies at the University of Minnesota-Duluth where she studied the structural complexities of high-grade metamorphic rocks along the margin of the Idaho batholith for her master’s thesis. The lure of the West and an opportunity to work with the U.S. Geological Survey to map the Colville batholith in northeastern Washington, led her to Washington State University for her PhD. Dr. Carlson accepted a position at California State University, Sacramento after her PhD and teaches physical geology, structural geology, environmental geology, and field geology. Professor Carlson is a recipient of the Outstanding Teacher Award from the CSUS School of Arts and Sciences. She is also actively engaged in researching the structural and tectonic evolution of part of the Foothill Fault System in the northern Sierra Nevada in California.

Professor Carolyn Eyles holds a B.Sc in Environmental Sciences from the University of East Anglia and a postgraduate certificate of Education from the University of Newcastle upon Tyne in Great Britain, and an M.Sc and Ph.D in Geology from the University of Toronto. She is now a full professor in the School of Geography and Geology at McMaster University in Hamilton. Her research interests lie in the fields of glacial sedimentology and environmental geology and she has worked extensively in Alaska, Australia, Norway, Great Britain and Canada. She teaches courses in Earth & the Environment, Earth History, Sedimentology and Glacial Sedimentology and has won several teaching awards including an OCUFA Teaching Award and the McMaster University President’s Award for Excellence in Instruction.

Professor Nick Eyles holds a Ph.D and D.Sc and is Professor of Geology at the University of Toronto. He has worked at the universities of Leicester, Newcastle upon Tyne and East Anglia in Great Britain, at Memorial University in Newfoundland and has been at Toronto since 1981. He has authored over 150 publications in leading scientific journals on glacial geology and environmental geology in urban areas and has conducted geological fieldwork from the Arctic to the Antarctic, including work on the ocean drillship Resolution. He has written several books including Toronto Rocks, which won an Award of Merit from the Toronto heritage Board in 1999, and the best selling Ontario Rocks published in 2002.