466 GEOLOGY OF NORTHWESTERN TEXAS. 



of the beds are red and some are red and white spotted and some have a 

 mottled appearance. 



The beds about three miles southwest of San Angelo are a bluish gray. 

 They are very homogenous throughout both in color and structure. These 

 stones are in regular layers from six inches to four feet thick, are easily quar- 

 ried, and are soft and easy to work when first taken out, but harden on ex- 

 posure. There are several buildings in the city of San Angelo made of this 

 stone. It is used in building chimneys, and stands the heat of an ordinary 

 fire well. 



At Buffalo Gap a red sandstone quarry has been opened by Mr. Haynes, 

 and the material was used in the construction of the college building at that 

 place. It is an excellent building material, retaining its color admirably, and 

 becoming very hard on exposure to the atmosphere. The bed is not very 

 extensive, but it is in sufficient quantity to supply any demand that may be 

 made for it. 



On the southeast of the town of Buffalo Gap about one mile and a half a 

 quarry of bluish, fine-grained, thin-bedded sandstone has been opened that 

 furnishes a good building stone. The stone ought to be laid in a structure 

 in the same position that it occupies in the quarry, otherwise it is liable to 

 scale in weathering, but if placed in the wall in the same position as it has in 

 the quarry it will weather very slowly. 



At Cedar Mountain, about six miles east of the town of Benjamin, in Knox 

 County, a quarry has been opened of gray sandstone, which occurs there in 

 heavy beds. The stone is easily quarried and dressed and becomes very 

 hard on exposure. It changes color very little on weathering. The county 

 jail in Benjamin is built of stone from this quarry. 



All these places mentioned are in the Clear Pork Beds of the Permian, 

 and are mentioned to give an idea of the extent of the sandstone in that part 

 of the State. 



In the Wichita Beds of the Permian there are no limestones suitable for 

 building purposes, but there is a great abundance of sandstones everywhere. 

 A few places only can be mentioned in this Report where these stones have 

 been used. 



At the town of Archer this stone is abundant, yet it has been used only to 

 a limited extent, but where used has given entire satisfaction. Its color at 

 that place is a bluish gray, rather soft when first taken from the quarry, but 

 becomes hard on exposure, and stands the weather excellently. 



At Wichita Falls there has been quite an amount of sandstone used for 

 various purposes. The piers for the bridge for the wagon road across the 

 Big Wichita River are built of this stone. The stone can be selected from 

 quarries in this vicinity that will be of the same color throughout, but the 



