Gregory Walsh

I am a Project Chief and a Research Geologist with the Florence Bascom Geoscience Center. I manage bedrock geologic mapping activities for the USGS in the northeastern United States. I managed two international mapping projects in Morocco, the completion of the new bedrock geologic map of Vermont, and I conducted mapping Madagascar.


I have expertise in geologic mapping, structural geology, geochronology, tectonics, digital cartography, and GIS. I specialize in the mapping, structure, and tectonics of complexly deformed rocks, the integration of geologic data with hydrogeologic and mineral resource assessment studies, and the use of GIS as a mapping and analysis tool. I have trained students and geologists in geologic mapping, GIS, GPS, digital mapping, and U-Pb geochronology by SHRIMP. 


  • Undergraduate Dean’s List five semesters (1982-1986)
  • Amoco Geophysics Award (1985)
  • NAGT – USGS Student Internship (1985)
  • L.R. Wilson Award, UMASS Amherst (1986)
  • Charles G. Doll Award, Vermont Geological Society (1988)
  • Seventeen USGS performance awards (1997-2018)
  • Elected GSA Fellow (2013)


View current CV HERE