We communicate about environmental stewardship and wise use of our precious natural resources through a broad understanding and appreciation for Missouri’s natural, cultural and energy resources. We invite you to read more about us and encourage you to take a self-guided tour of the Ed Clark Museum of Missouri Geology where you will find educational displays that feature rocks, minerals, fossils, and descriptions of the geologic history of Missouri, and more.

Ask a Geologist

Ask a GeologistDo you have a question about Missouri geology, or do you have a rock you would like to have identified? If so, send a photo of the rock and information about where you found the rock and one of our geologists will reply. Contact us at askageologist@dnr.mo.gov.




Traveling I-55, southbound? Be sure to visit the Marston Welcome Center, located in southeast Missouri at exit 42.4. Displays at the center educate about the New Madrid Earthquakes of 1811-12, earthquake preparedness, and Mississippian Culture. Missouri Geological Survey Deputy Director Jerry Prewett and other invited guests spoke during the ribbon cutting ceremony that celebrated completion of the facility.