GRF Personnel

  • Department Chair, Social Sciences
  • Director, Geospatial Research Facility
  • Associate Professor of Geography and GIS

Research Interests

  • Environmental Change and Life Course Epidemiology
  • Urban Environments and Population Health
  • Public Participatory GIS
  • Historical GIS & Deep Mapping
  • Spatial Humanities 
  • Deindustrialization and Shrinking Cities
  • Time-Space Integration and Modeling in GIS
  • Demography and Historical Record Linkage
  • Sense of Place and Neighborhood Construction
Ryan Williams, GISP, MGIS

Ryan Williams, GISP, MGIS

  • Assistant Director, Geospatial Research Facility

Areas of Expertise

  • Geographic Information Systems
  • Database Development
  • GIS Tool and Process Development
  • Integrating Web, GIS, Database and Analytics Tools
Dan Trepal

Dan Trepal

  • Senior Geospatial Research Scientist
  • Adjunct Assistant Professor, Social Sciences


  • PhD, Industrial Heritage and Archaeology, Michigan Technological University
  • MS, Industrial Archaeology, Michigan Technological University
  • BS, Anthropology and History, Cleveland State University

Research Interests

  • Industrial and Urban Archaeology
  • Historical GIS
  • Deindustrialization
  • Industrial Landscapes
  • The Archaeology of Brownfields
  • Spatial Analysis of Historical Industrial Pollutants
  • Big Data Approaches to Archaeology
  • Publicly-engaged Scholarship
Daniel Lizzadro-McPherson

Daniel J. Lizzadro-McPherson

  • Geospatial Research Scientist

Areas of Expertise

  • Geographic Information Systems (GIS) and Geostatistical Analysis
  • Lake Superior Geology, Coastal Geomorphology, and Geoheritage
  • GPS, GIS Data Collector Applications, and Mapping Technologies
  • Web-based GIS Data Dissemination and Applications
  • Interdisciplinary GIS Project Management
Bob Cowling

Bob Cowling

  • GIS Data Librarian

Areas of Expertise

  • Geographic Information Systems (GIS)
  • Geospatial Metadata
  • Cartography
  • Web-based GIS application development
  • Geospatial data management, discovery, and dissemination
James Juip

James Juip

  • GIS Analyst
  • PhD Student, Industrial Heritage and Archaeology



  • BS, Geology - Earth Science Education, Michigan Technological University 

Research Interests

  •  Industrial Heritage Interpretation
  • Community Based Heritage Management
  • GIS Applications for Heritage Interpretation
  • Great Lakes Mining History
  • Turn-of-the-Century Geologic and Survey Methods in the Great Lakes
Gary Spikberg

Gary Spikberg

  • GIS Specialist

Research Interests

  • Heritage Interpretation
  • French Canadian Migration
  • Record Linkage
  • Virtual Reality
  • Deep Mapping
  • Historical GIS