Landslides Super School
Instructor Bios

James Arthurs, Ph.D., P.E., P.G.
James Arthurs, Senior Geotechnical Engineer, FHWA
Bio:
James strives to apply his knowledge and skills in geology and engineering to help the public live and build safely in a world rich in hazards. To that goal, he earned a B.Sc. in Geological Engineering from the Colorado School of Mines, focusing on engineering geology, geotechnics, and hydrogeology. James moved to New Zealand, and started work towards a Ph.D. in Geology, his research focused on landslide in volcanic ash, volcaniclastics, and volcanic derived sediments. Upon completing his Ph.D., he moved back to Colorado and went to work for a local geotechnical firm, starting as a construction inspector and working his way up to a project engineer responsible for design of MSE retaining walls for large, complex commercial and residential sites. Along the way, he helped coordinate and conduct subsurface investigations for the Eagle P3 FasTracks project, a recent major commuter rail build out in Denver. At this point, he had an opportunity to join Federal service at the Office of Federal Lands Highway. Since then, he has worked on a variety of complex and technically challenging projects with a variety of local and Federal projects. James won the Young Author Award at the 2017 Highway Geology Symposium for his paper on construction on weathered volcanic ash in Hawai'i. James is active in the Association of Engineering Geologists, serving as his local Chapter Chair in 2019-2021, and Co-Chair of the Landslide Technical Working Group from 2022 to present.

Darren Beckstrand
Landslide Technology
Bio:
Darren is a Senior Associate Geologist with Landslide Technology with 26 years of experience. He specializes in Geotechnical Asset Management, Geotechnical Instrumentation, and Slope Stability Concerns.

Lynne Chastain-Carpenter
Program Manager at National Geologic Hazards Management Program, USDA Forest Service
Bio:
Coming Soon...

Casey Dowling
​Senior Geological Engineer, BGC Engineering
Bio:
Casey Dowling is a Senior Geological Engineer at BGC Engineering and an adjunct faculty member in the Geology and Geological Engineering Department at the Colorado School of Mines. He has over 15 years experience working in the field of landslides, completing field investigations and desktop analyses on landslides from the Rockies of Northern British Columbia to the Yazoo Clay of Mississippi. He specializes in landslide characterization and geohazard management strategies for linear infrastructure.

Elizabeth Eiden, Ph.D.
Research Geophysicist, Geologic Hazards Science Center, USGS
Bio:
Elizabeth uses satellite remote sensing data (e.g., InSAR) to detect and monitor natural hazards.
Education:
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2024: Ph.D., Geophysics, Cornell University
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2019: B.S., Geophysics, California Institute of Technology

Nicole Oester Mapes
Geohazards Services Manager, Colorado Department of Transportation
Bio:
Coming Soon...

Chris Pederson
​Geotechnical Engineer, BGC Engineering
Bio:
Coming Soon...

Roch S. V. Player, PE, BC.GE, PMP
Vice President, Principal Engineer - Braun Intertec Corporation
Bio:
Roch S. V. Player, PE, BC.GE, PMP, is Vice President of Technical Practice at Braun Intertec Corporation . Mr. Player resides in Mount Vernon, Iowa. He received his BSCE with a Geology Minor and MSCE in Geotechnical Engineering with a Geology Emphasis from Iowa State University. Mr. Player is a licensed Professional Engineer in multiple states. He has over 30 years professional experience on projects throughout the United States and Canada. During his career, he has specialize in geohazard characterization and Design/Build delivery of infrastructure projects, including bridges, highways, airfields, slope stabilization, geohazard mitigation, and retaining structures. In addition to his professional consulting and construction experience, for two years he taught geotechnical and foundation engineering as an Adjunct Instructor at the University of Texas – Tyler. After spending 15 years living and working around the U.S., he returned to Iowa in 2013 to continue his professional practice and finish raising his family. Mr. Player remains active in civic, professional, and religious organizations. He has been married for over 30 years to Sherene Hansen Player and is the father to four daughters.

Matthew Reihl
Director of Strategic Partnerships, GeoStabilization International®
Bio:
Coming Soon...

Cole Rosenbaum, M.Sc., PE
Senior Geological Engineer, BGC Engineering
Bio:
Cole is a Senior Geological Engineer with BGC Engineering in Golden, Colorado, with over ten years of experience specializing in landslide and geohazard investigations, mitigation design, construction support, and geohazard asset management programs for linear infrastructure across North America. He holds B.Sc. and M.Sc. degrees in Geological Engineering from the Colorado School of Mines and is licensed as a Professional Engineer in multiple U.S. states. Since joining BGC in 2017, Cole has worked across many aspects of landslide practice, from field investigations and data analysis to developing geotechnical models, designing mitigation measures, and providing construction oversight and quality assurance. His experience includes desktop landslide inventories using lidar and satellite imagery and pipeline strain data; detailed subsurface investigations with drilling, test pits, and instrumentation; and hands‑on construction support where designs were adapted to observed site conditions. He has also worked on landslide investigations in Yellowstone National Park, where landslides are addressed in a setting that underscores both the complexity and importance of the work. Cole has served as project manager and technical lead on landslide projects impacting pipelines in the Appalachian Plateau and throughout North America, and he balances technical practice with project, staff, and office leadership as an office manager overseeing a multidisciplinary team. He is an active member of the Association of Environmental and Engineering Geologists and has served as Co‑Chair of the AEG Landslide Technical Working Group from 2024 to present.

Francis Rengers, Ph.D.
Research Geologist, Landslides Hazards Program, USGS
Bio:
For the past 12 years Francis Rengers has worked as a Research Geologist at the U.S. Geological Survey (USGS) in the landslide hazard program (https://www.usgs.gov/programs/landslide-hazards). Prior to the USGS he worked in environmental consulting and for the Colorado Water Conservation Board. Dr. Rengers obtained undergraduate degrees in Geology and French, at West Virginia University (1999-2003), an M.S. degree from Colorado State University in Fluvial Geomorphology (2003-2005), and a Ph.D. in Geoscience from the University of Colorado (2009-2014) with a focus on highly erosive environments (gullies and wildfire areas). Since 2014, Dr. Rengers has worked at the USGS on postfire debris flows, and he has also served as an adjunct professor at the Colorado School of Mines since 2018. He was the 2024 Chair of the Environmental and Engineering Geology division of the Geological Society of America and is an active member in the American Geophysical Union, European Geophysical Union, and Japan Geophysical Union. He has published 97 journal articles, book chapters, and data releases, mentored 42 students, and presented more than 130 abstracts at national and international conferences.

Lauren Schaefer, Ph.D.
Research Civil Engineer, Landslides Hazards Program, USGS
Bio:
Lauren Schaefer joined the USGS Geologic Hazards Science Center in June 2020. Lauren is a researcher with the Landslide Hazards Program investigating landslide hazards using a variety of engineering geology principles and remote sensing techniques. Her research interests include multidisciplinary applications of synthetic aperture radar and spectral imaging, landslide and volcano monitoring, experimental rock mechanics, and material evolution in dynamic systems. She is additionally interested in natural hazards emergency response. She has previously served as a volunteer for the Red Cross, AmeriCorps, and GeoCorps America.
Education:
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2013-2016: PhD, Geological Engineering, Michigan Technological University, USA
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2010-2012: MS, Geology, Michigan Technological University and Università degli Studi di Milano-Bicocca, Italy
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2005-2009: BA, Environmental Geoscience, DePauw University, USA

