This publication presents a description of the geology of 122 square miles in Johnson and Logan Counties, Arkansas. Special emphasis is given to the potential of mineral resources of the study area, particularly coal, natural gas, building stone, crushed stone, sand and gravel, and clay.

It includes:

• Lithologic descriptions of formations in the study area
• Colored geologic map of the study area in pocket
• Structure contour map in pocket
• Geologic cross sections of the study area in pocket
• Correlation chart of well and electric logs in pocket
• Formation correlation chart of the study area
• Descriptions of 47 wells
• Stratigraphic chart displaying divisions of the Atoka Formation in the study area
• Chemical analysis of shale from the Atoka Formation

*Includes: 18 pages, 4 plates, 1 figure, 5 tables

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