PARKER COUNTY. 519 



Five or six miles southwest of Bridgeport, and on the west side of Boon's 

 Creek, the coal outcrops at the foot of the hill, and is overlaid by the Trinity 

 Sands of the Cretaceous. 



OTHER MINERALS. 



Gold, silver, copper, and platinum have been reported from the vicinity of 

 Decatur, but the most delicate tests of the laboratory have failed to detect 

 anything except a trace of copper and a small amount of nickel. There are 

 small pieces of meteoric iron found in the Trinity Sands at this locality, and 

 in that is found a small percentage of copper, but no gold, silver, platinum, 

 or other rare and precious metals have been discovered by the members of 

 the Survey, nor have they been found in the material sent for examination 

 to the laboratory by others. 



PARKER COUNTY. 



COAL. 



Only a narrow strip of the western edge of Parker County belongs to the 

 Carboniferous formation. The hills three or four miles east of Millsap are 

 Cretaceous, and only that part of the county west of those hills is Carbonif- 

 erous. 



Coal Seam No. 1 outcrops in a number of places on Rock Creek, three 

 miles and more from Millsap northwestward. 



The following is a description of some of the outcrops and shafts seen in 

 this vicinity. Plate VIII shows the various localities mentioned : 



CAKSON & LEWIS MINE. 



This mine is situated on the northwest quarter of section 359, made for 

 the Texas and Pacific Railway, and on the east side of Dry Creek. The shaft 

 is partly filled with water and the timbers are rotting and falling in so as to 

 make it dangerous, if not impossible, to enter the mine. The mine was 

 worked by sinking an inclined shaft to the coal. 



The seam in the mine is from eighteen to twenty-six inches thick, is of fair 

 quality, having but a small percentage of sulphur. The coal mined here was 

 hauled in wagons to Weatherford and used in the Carson & Lewis Steam 

 Flouring Mills for driving their engine, and for domestic purposes in that 

 town. 



About two hundred yards west of the mine, in the bank of Dry Creek, is 

 a bluff showing ten feet of soil, with a bed of sandstone, and below the sand- 

 stone a bed of shaly sandstone and bluish clay ten feet thick. This is en- 

 tirely above the Coal Seam, and I did not get a section in the vicinity show- 

 ing the Coal Seam. 



