Rocky Face Fault

The Rocky Face Fault is a geological fault responsible, in part, for the location of Cumberland Gap in the southern Appalachian mountain range. (Another factor is wind gap erosion from rivers which predated the Alleghenian orogeny.) Included along the fault are the towns of Middlesboro, Kentucky, Pineville, Kentucky. The fault represents a crack in the Pineville Thrust Sheet, one of many remnant resistant strata pushed upwards to the northwest over the neighboring Cumberland Plateau.

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