Uploaded March 2025 | Updated September 2026, 3 weeks ago

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Trevor Contreras (WGS), Nick Zentner (CWU), & Jordan Carey (CWU-WGS) | March 13, 2025
Trevor Contreras - Mapping Geologist - Washington Geological Survey
Email: trevor.contreras@dnr.wa.gov
WA Geology Library: dnr.wa.gov/programs-and-services/geology/washington-geology-library
WA Geologic Information Portal: dnr.wa.gov/geologyportal