1887.1 "J- ' [Stevenson. 



enter Kimberling in Devonian, wliicli is the surface group in nearly 

 all of the broad space between Brushy mountain at the south and Wolf 

 Creek mountain at the north, the distribution being due to the disap- 

 pearance of the Burk's Garden anticlinal and to the growth of the Kim- 

 berling anticlinal. The portion of the area lying north from Kimberling 

 is almost uninhabited and is known as the "Wilderness." 



Exposures are very indefinite along the Wilderness road for some dis- 

 tance from Kimberling creek on the way to Rocky gap ; but near Mr. 

 Benton's house, at, say, two miles from the creek, tlie rocks are dipping 

 northward at nearly fifty degrees, and the rate increases at a little distance 

 further, as is well shown by exposures in the stream. 



The dip again becomes southward at somewhat more than a mile from 

 Benton's house and the Chemung rocks are soon shown with almost ver- 

 tical dip forming an irregular broken ridge. No exposures aside from those 

 of a few dark shales occur in the interval to the next ridge, a space which 

 should be occupied by Hamilton. A sandstone ridge, evidently Oriskany, 

 is cut by the road at somewhat more than a mile and a half from the 

 Rocky gap by which Wolf creek passes through Wolf Creek mountain, 

 the same with that known in Tazewell county as Rich mountain. This 

 ridge is cut by the creek at, say, three-fourths of a mile from the forks of 

 road at head of the gap. No fossils were observed in the sandstone. 

 Some white chert which may represent the Lower Helderberg was ob- 

 served here. 



The Clinton is quickly reached with its dark red sandstone ; it makes a 

 well-marked ridge and terrace along the southerly foot of Wolf Creek 

 mountain. Fossil ore occurs very abundantly, but the fragments seen 

 along the foot of the mountain are very silicious. Medina is shown in the 

 stream-bed at the very head of the gap, whence it rises rapidly to crest 

 of the mountain with a dip of twenty-five to twenty- seven degrees. The 

 immediately underlying red beds are more silicious than at most of the lo- 

 calities visited, and they are exposed to a thickness of about 250 feet. Ex- 

 posures are very indefinite beyond this until the Trenton is reached mid- 

 way in the gap. The Calciferous beds next come up and at the mouth of 

 the gap they are dipping southward at thirty-five degrees. These beds 

 prevail to the cross-roads at J. D. Honaker's store. 



Wolf creek bends northward immediately below Honaker's store and 

 soon crosses the Wenonah fault, which brings Calciferous against Clin- 

 ton, the dip of the latter being eighty degrees. The Medina caught in 

 this double fault forms the Valley ridge, which is persistent thence to the 

 New river. The creek passes through this ridge at say a mile and a halt 

 below Honaker's and affords a fine exposure of Medina on the easterly 

 wall of the gap. The Calciferous limestones are reached immediately 

 behind the ridge and within one-fourth of a mile are faulted against the 

 Medina of Buckhorn mountain, a low ridge following the southerly foot 

 of East River mountain. The road crosses this fault to the IVIedina, but 

 returns to the limestone on the hill opposite Mr. Carpenter's house about 



