JOHNSON: TALLULAH DISTRICT. 
241 
Comparison with Facts as Observed in the Tallulah 
District. 
It is at once apparent that the topographic features of the Tallu¬ 
lah district correspond most closely with the expectable results of 
remote river capture under the conditions outlined above. Referring 
to figure 5, and comparing it with figure 9, we see that the Chattooga 
escarpment is very ragged as a result of dissection by the headward¬ 
growing Atlantic streams; and that it separates a higher and a lower 
peneplain level, rendering the conditions favorable to capture; that 
the Chattooga River corresponds to the captured stream A ; Deep 
Creek to the beheaded stream A 1 ; Tallulah River to the large tribu¬ 
tary B, coming down out of the mountains; Panther Creek to the 
tributary F, and the Tugaloo to the captor ED. We note that Deep 
Creek occupies the upland surface, and is a fairly mature stream, 
whereas the streams of the other system are engorged, as we should 
expect on the basis of the capture theory. We find the gorge of the 
lower Tallulah River unusually narrow and steep-sided, the river 
plunging down into that gorge by a succession of magnificent falls, 
whereas the gorge of the Chattooga River is more open and no falls 
of consequence are found. Referring to the geological sketch map 
(fig. 4), we have a complete explanation of this discrepancy, in the 
hard rock encountered by the Tallulah River, which is not exposed 
in the Chattooga. I have traversed both stream beds for a number 
of miles, finding abundant ledges of quartzite and quartzite boulders 
in the lower Tallulah, but no such rock in the Chattooga, where the 
boulders and ledges were of mica schist. Nothing could be more 
striking than the difference in the rocks encountered by the two 
streams. As a result of this difference the Chattooga has been able 
more nearly to grade its course on the weak rocks, whereas the Tallu¬ 
lah has only been able to wear its falls back a short distance in the 
hard rocks. 
Panther Creek and Little Panther Creek, while located for the 
most part on mica schist, are smaller, weaker streams than the Tallu¬ 
lah or the Tugaloo, and for that reason still have falls along their 
courses, although they have cut deep gorges, as we found expectable 
in the case of the theoretical stream F. Still smaller tributaries along 
the Chattooga and other main streams, have worn down their valleys 
