Georgia\'s Physiographic Provinces. Cumberland PlateauBlue RidgeRidge and ValleyPiedmontCoastal Plain. Georgia\'s Watersheds. River headwaters in higher elevationsFlow Southeast and Southwest to Atlantic Ocean and Gulf of Mexico. Blue Ridge. Constrained channels underlain by bedrockGenerally clear and cool flow from forested watershedsHigh energy but with low flow due to smaller catchment basinWaterfalls.