Missouri Geological Survey was created in 1853 to collect and distribute information about Missouri's water, mineral and energy resources. Our mission is to provide earth science information and services that support stewardship and beneficial use of Missouri's natural resources and that benefit public health and safety.

  • Missouri Geostrat
  • State Water Planning
  • Well Drillers
Minerals and Mining
Find out more about Missouri's past and present mining and land reclamation.
Oil and Gas
Access information about oil and gas in Missouri.
Geothermal
Learn about the science of ground temperatures and uses of this natural energy.
McCracken Core Library and Research Center
Visit one of the country's largest rock core repositories.
Rocks and Fossils
Learn about Missouri's rocks, minerals and fossils.
Caves
Learn more about our 7,000 plus caves
Groundwater
Explore current groundwater information that is important to you such as, water levels, aquifers and more.
Maps and Publications
Explore topographic maps, geologic maps, scientific publications, books and more.
Environmental Science
Protecting the enviroment using geoscience.
Ask a Geologist
Do you have a question about geology?
Wells
Learn about various well types, uses and regulations for drilling and well construction, and geologic well logs.
Major Water Users
Who is considered a Major Water User? See how to report water usage if you are a Major Water User.
Wetlands
Information about wetlands including monitoring stations.
Springs
Learn more about our more than 4,500 springs.
Groundwater
Explore current groundwater information that is important to you such as, water levels, aquifers and more.
Surface water
Access information about streams, lakes and reservoirs.
Interstate Waters
Missouri shares water with 26 states. Find information about issues concerning these shared waters.
Dams
Find information related to the regulation of dams in Missouri.
Water Planning
See how Missouri is planning for future water needs and supplies.
Water Tracing
This is a process used to research where and how water travels underground.
Environmental Science
Protecting the environment using geoscience.
Maps and Publications
Explore topographic maps, geologic maps, scientific publications, books and more.
Earthquakes
Small earthquakes occur in Missouri nearly every day. See where the most recent quakes are located.
Sinkholes
The state has more than 14,600 sinkholes. See where and how they tend to develop.
Flooding
Be prepard for flooding. Find river and lake levels here.
Landslides
Learn about landslides in Missouri and see where they are more likely to occur.
Mine Shafts
What makes them a hazard and what can you do with one if found on your property? Find out more here.
Open Wells
Learn how to plug an abandoned well.
Dam Failures
What are leading causes of dam failure, how do they occur and how can they be prevented? Find out more here.
Maps and Publications
Explore topographic maps, geologic maps, scientific publications, books and more.
Ed Clark Museum
Visit our museum of geology including minerals, rocks, fossils and more.
Ask a Geologist
Do you have a question about Missouri geology?
Geology Store
Order maps and publications online.
Careers in Geology
Learn about professional opportunties
Videos
Check out some of our educational videos
Activities and Events
MoDNR and geology activities and events.
Rocks and Fossils
Discover what they are, what they look like, and where to find them.
Maps and Publications
Explore topographic maps, geologic maps, scientific publications, books and more.