HEXRY COUNTY. 193 



outcrops and is mined extensively on Mineral cr^k farther south, 

 and at Coal Valley, south-west a few miles. On the Green river bot- 

 tom the underlaying rock the cap of the coal seam is from seven- 

 teen to twenty feet below the surface. The seam at Cleveland furnishes 

 one ton and a half of coal to the superficial square yard of its surface. 

 The section there made will give a general idea of the Coal Measures 

 on Mineral creek, farther south, and for the rest of the north-western 

 part of the county. Xo two sections, of course, would be exactly alike; 

 but the resemblance would be very marked. 



The superficial extent of coal lauds, underlaid by this coal seam, ex- 

 tending from Cleveland around by Mineral creek, Miuersville, Coal 

 Valley, and Green Eiver Valley, so far as now prospected, contains 

 perhaps some forty thousand acres. On a railroad and coal land map, 

 made by the chief engineer of the railroad about to be built along Rock 

 river, some fourteen sections and parts of sections are marked as under- 

 laid by coal in township 17, range 2 east ; in township 17, range 1 east. 

 some twenty-two sections and parts of sections are similarly marked ; 

 in township 17, range 1 west, some ten sections and parts of sections 

 are marked as containing coal underneath ; in township 16, range 1 

 \\vst. five or six sections are siuiiliarly marked ; in the same township 

 and range east, three sections are coal lands : in township 18, range 2 

 east, some ten more sections are supposed to be underlaid partially by 

 coal. These east ranges are in Henry county; the west ones are in 

 Rock Island county. The Cleveland mines are in township 18, range 2 

 east. Other sections will, no doubt, be found containing coal in this 

 vicinity. Of course, all the above marked coal lands are not underlaid 

 by heavy coal deposits. Wherever coal or its traces were detected by 

 the engineer in charge Mr. J. C. ABBOTT, to whom I am under many 

 obligations, for favors extended the same was marked coal lands on 

 the map. My own personal examinations confirm the general correct- 

 ness of this map. 



The following worked mines in this coal field should not be passed 

 over without notice. On or between sections 17 and 18, township 17, 

 range 2 east. Mr. Shepherd is successfully operating several shafts; 

 on section 22, township 17, range 1 east. Perry's mine is also now in suc- 

 -ful operation; Glen's mine, on section 20, in the same town and 

 range, and some mines on section 21, township 17, range 1 east, now 

 are or have been sucressiully worked. The seam is from four to six 

 feet thick in this group of mines. It has an easterly dip, and appears 

 to be lower at Shepherd's mines than at the mines of Mr. Perry. 



In one of these mines, where a drift is driven into the seam, the coal 

 is separated into two bodies, the upper three feet thick, the lower two 



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