In addition to housing Mississippi's largest core collection, the Environmental Geology also houses the following collections:

Fossils

Fossils making up reference collections for various formations in the state. (Online)

Oil and gas logs (Online)

Scout card collection

Donated Scout cards from several states are housed:

• Mississippi (Online)
• Arkansas (partial)
• Alabama (partial)
• Florida (partial)

Borehole logs

10,196 geophysical logs run by the Environmental Geology Division or donated by private entities are on file and online.

Historic aerial photos

Historic MGS collections

Reference collections for geologic bulletins, early survey collections, printing plates, and early survey instruments/tools