Missouri Geological Survey
Photo circa 1970s. Ha Ha Tonka State Park
This year marks the Missouri Department of Natural Resources' 40th anniversary of taking care of Missouri's natural resources.
Thanks to the hard work and dedication of many, we have made significant improvements to our state's air, land and water quality. With your help, we've been able to help improve Missouri's natural resources and public health giving us all great reason to pause and celebrate a successful 40th anniversary.
We will continue to work together to provide all Missourians a healthy environment in which to live, work and enjoy the outdoors. Learn more.
GeoSTRAT – Geosciences Technical Resource Assessment Tool
Find locations of springs, mines, sinkholes and more using the Missouri Geosciences Technical Resource Assessment Tool. GeoSTRAT is a Web application that makes geologic and hydrologic data readily available for public use. GeoSTRAT enables users to easily visualize and explore geospatial data using an interactive map. Data also can be downloaded in formats compatible with a variety of free and commercial mapping software. GeoSTRAT can be used in the office or in the field.
Sinkholes are depressed or collapsed areas formed by dissolution of carbonate bedrock or collapse of underlying caves. They range in size from several square yards to hundreds of acres and may be very shallow or hundreds of feet deep. Sinkholes are part of what is called “karst” topography, which also includes caves, spring and losing streams. We provide assistance to the citizens of Missouri by evaluating the causes and impacts of sinkhole formation and collapse. Geologists perform geologic and hydrologic evaluation to determine if collapse is attributed to a natural karst feature or is associated with the failure of a man-made feature. Learn more.
- Search for Well or Pump Installation Contractors
- Our geologic maps and USGS topographic maps look great framed and they make great gifts
- Learn about careers in geology – watch this short, informative video
- USGS Director Marcia McNutt recognizes importance of State Geological Surveys