Inclined bedding - Showing approximate strike and dip
Overturned bedding - Showing approximate strike and dip
Contact - Existence certain, location approximate
Igneous Dike - Existence certain, location approximate
Normal Fault - Existence certain, location approximate
Normal Fault - Inferred or concealed
Tear Fault - Existence certain, location approximate
Tear Fault - Inferred or concealed
Thrust Fault - Existence certain, location approximate
Thrust Fault - Inferred or concealed
Overturned Thrust Fault - Existence certain, location approximate
Alluvium - Quaternary
Sand & Gravel - Quaternary
Stream Overbank - Quaternary
Terrace - Quaternary
River Terrace - Quaternary
Sand & Gravel - Tertiary
Gravel - Tertiary
Claiborne Group - Tertiary
Wilcox Group - Tertiary
Midway Group - Tertiary
Arkadelphia Marl - Cretaceous
Nacatoch Sand - Cretaceous
Saratoga Chalk - Cretaceous
Marlbrook Marl - Cretaceous
Annona Chalk - Cretaceous
Ozan Formation - Cretaceous
Brownstone Marl - Cretaceous
Tokio Formation - Cretaceous
Woodbine Formation - Cretaceous
Kiamichi/Goodland Formation - Cretaceous
Trinity Group - Cretaceous
De Queen Limestone - Cretaceous
Dierks Limestone - Cretaceous
Igneous Rocks - Cretaceous
Boggy - Pennsylvanian, Desmoinesian Series
Savanna - Pennsylvanian, Desmoinesian Series
McAlester - Pennsylvanian, Desmoinesian Series
Hartshorne Sandstone - Pennsylvanian, Desmoinesian Series
Upper Atoka - Pennsylvanian, Atokan Series
Middle Atoka - Pennsylvanian, Atokan Series
Lower Atoka - Pennsylvanian, Atokan Series
Johns Valley Shale - Pennsylvanian, Morrowan Series
Jackfork Sandstone - Pennsylvanian, Morrowan Series
Stanley Shale - Mississippian
Arkansas Novaculite - Devonian and Early Mississippian
Missouri Mountain Shale - Silurian
Blaylock Sandstone - Silurian
Missouri Mountain Shale / Polk Creek Shale - Silurian and Late Ordovician
Polk Creek Shale - Late Ordovician
Bigfork Chert - Middle and Late Ordovician
Womble Shale - Middle Ordovician
Blakely Sandstone - Middle Ordovician
Mazarn Shale - Early Ordovician
Crystal Mountain Sandstone - Early Ordovician
Collier Shale - Late Cambrian and Early Ordovician
Strip Mine