The geology map of Missouri is presented here with only primary surface bedrock types. On the individual county pages, the maps also display secondary and tertiary bedrock / substrate types.
![]() | Alluvium | ![]() | Sandstone |
![]() | Clay | ![]() | Dolomite |
![]() | Igneous | ![]() | Limestone |

- (MSDIS). 2021. <https://msdis.missouri.edu/> Accessed 1 February 2021.