Stevenson.] 1Z4: [Nov. 21, 



and better marked until it is a single ridge -with a cliif of Chemung sand- 

 stone for its crest. 



In a section extending from Moccasin creek to the Saltville fault at 

 Wolf Run summit this series shows monoclinal structvire from Moccasin 

 creek until within about two miles of the summit, where one crosses the 

 petty folds already mentioned. At not far from twelve miles further east, 

 near Little Moccasin creek, a new feature is introduced and the Poor val- 

 ley is divided by a gentle anticlinal, the structure being as represented in 

 Fig. 1. This anticlinal may be the same with that which is designated the 

 Burk's Garden anticlinal, or it may be a petty fold dying out on the Taze- 

 well pike in the synclinal north from that anticlinal. The development of 

 the anticlinal and the accompanying synclinal on the northerly side 

 pushes the Clinch outcrop of Medina northward so as to form the irregular 

 Brumley mountain, which at ten or twelve miles further eastward is cut 

 off by the growing Loop anticlinal. The Clinton shales held up by the 

 new anticlinal, widen Poor valley into Brumley and Hayter coves extend- 

 ing from Little Moccasin creek eastward almost to Tumbling creek, some- 

 what more than fifteen miles in a direct line. 



A projection somewhat like Brumley mountain, but better defined, is 

 shown further east beyond the Cedar Creek loop or cove, the first of the 

 coves or anticlinal valleys with Medina rim. Brumley mountain forms 

 the south-westerly boundary, Little Bear town the easterly and northerly, 

 while the notched border of Clinch mountain forms the southerly and south- 

 easterly border. The cove is not wholly enclosed, as the Medina has been 

 removed from the north and north-west for probably five miles. The 

 structure along a section beginning at the Fincastle pike and passing 

 through Hayter's gap in Clinch mountain to the Saltville fault is shown in 

 Fig. 2. The Loop anticlinal is ciossed by the road to Hayter's gap just 

 north from the Rich Mountain road. It is complex and apparently attains 

 its maximum further west, where it cuts off the Medina of Brumley moun 

 tain. It diminishes quickly eastward so that the Medina outcrops of both 

 Clinch and Little Bear town unite at the head of the cove or loop The 

 Burk's Garden anticlinal in Poor valley attains to no material elevation 

 along this line, and is simply a broad roll, which serves to carry the out- 

 crop lines of Devonian and Lower Carboniferous southward, as is well 

 shown at Saltville, where nearly the whole of the Lower Carboniferous 

 red shales have disappeared in the fault, which there passes very near the 

 crest of the Wolf Run anticlinal. 



The next section, that passing from Liberty on the Fincastle pike to the 

 Saltville fault about nine miles west from Saltville, is shown approximately 

 in Fig. 3. The Thompson- Ward cove, also on the northerly side of Clinch 

 mcmntain, is crossed by the Tazewell pike along the line of this section. 

 It is not far from twenty miles long and is enclosed on all sides by Medina, 

 save on the north-west, where there is a gap of nearly six miles. The 

 westerly end is known as Ward's cove, enclosed by Short mountain on the 

 north west and on the south by Clinch mountain, which is continuous 



