1936 Map of Petty Gap

About this map

The Tennessee Basin Divide dominates the lower-left corner of this specialized topographical study, marking a significant hydrological boundary between regional watersheds. The landscape is characterized by the Barren Plateau, showing the transition of the terrain as it crosses from Cannon County into Coffee County. While the majority of the sheet remains blank, this advance edition provides specific data for water features like Perry and Greek along the southern border. Compiled from aerial photographs and examined in the field in 1936, the map represents the early efforts of the Tennessee Valley Authority and the Geological Survey to document the interior drainage patterns of the state during a period of massive federal infrastructure development.