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August Public Lecture Flyer, 2022

Detailed Description

The National Geologic Map Database

A wealth of geologic information at your fingertips! 

by David Soller, USGS Geologist

  • The USGS and State Geological Surveys have been making geologic maps since the 1800s - this data (and more) can be found in the National Geologic Map Database (NGMDB). 
  • Geologic maps provide information about the earth materials beneath our homes, and are essential for energy and mineral exploration, environmental studies, hazard mitigation, and more. 
  • Learn about the history of geologic mapping and how to access over 100,000 geologic maps and publications covering the U.S. 


August 25, 2022 at 6:00 PM (PT) 



Public Domain.