CRAWFOBD COUNTY. 23 



Ft. 



Bnff and drab niarl y clays or sands 10 to 20 



Brown and yellow gravelly clays 15 to 20 



Bluish gray hard pan '- 10 to 25 



Sand or gravel 3 



Generally, these superficial deposits are thin in this county, and at 

 most places the bed rock will be found within fifteen or twenty feet of 

 the surface. Small bowlders are frequently met with in the branches, 

 but large ones are quite uncommon, and they are more frequently 

 derived from the limestones and hard sandstones of the adjacent Coal 

 Measure beds, than from the metamorphic rocks beyond the confines 

 of the State, though some of the latter were seen. 



Coal Measures. 



The stratified rocks of this county all belong to the upper Coal 

 Measures, the lowest beds appearing in the bluffs of the Wabash river 

 and the highest along the western borders of the county, and include 

 the horizon of coals Nos. 11, 12 and 13, of the Illinois section. The only 

 knowledge that we have of the underlaying formations is derived from 

 a shaft and boring made at Palestine landiug. The shaft passed 

 through the following beds, commencing about six feet above high 

 water level in the Wabash river : 



Ft. In. 



Soil, gravel and clay _ 8 



Loose sand rock 4 



Shale 21 8 



Coal. Xo. 10? 2 to 3 6 



Fire-c!ay 3 



Hard limestone 3 6 



Sandstone 21 



Brown sbale 6 



Limestone, with fossils 6 



Gray sandy shale 2 



Limestone 8 



Clay shale 1 4 



Limestone 6 



Sandstone and shale 38 6 



Black shale 2 



Coal, No. 9? 6 



Fire-clay, not passed throngh. 123 



This shaft was sunk to reach a coal seam reported in a boring pre- 

 viously made to be four feet thick, and at a depth of 123 feet. The 

 bore was made about a mile and a half north-west of the shaft, and 

 commenced 15 feet below a thin coal which outcrops in the hill above. 

 The bore was made for oil, during the oil fever, and no great reliance 

 can be placed on the reported thickness or character of the strata pen- 

 etrated. The shaft mentioned above was sunk to the horizon of a coal 



