80 



RESOURCES OF TENNESSEE. 



primarily from a small surface stream which flows into the north end of 

 the rift behind the bridge, and then under the arch. 



This bridge has been formed in identically the same manner as the Se- 

 wanee natural bridge, but is not so old. The spring coming from the 

 face of the bluff at this bridge, is weak, while at the Sewanee bridge the 

 spring is the main source of water supply. The undermining of the rock 

 of the arch, which is still thick and massive, is only slight. 



Doctor L. C. Glenn reports that another natural bridge exists near the 

 eastern edge of the plateau, in the region just north of La Follette. 



FIG. 4. Diagram of Gooch Creek natural bridge. Top view. (W. A. N.) 



