The orogeny that produced the Wichita Mountains in southwestern Oklahoma began in early Pennsylvanian, culminated in early Permian, and resulted in a multiple overthrust structural complex along the mobile southern rim of the Anadarko basin. Structure within the numerous fault blocks is complicated by steep dips, overturned folds, etc. Periods of mountain building are reflected by transgressive granite wash facies which confuse the post-Morrow stratigraphy.

Representative cross sections from the mountains into the basin, through wells that have encountered thrust faulting, are presented.

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