Art. IX.] Watson, Manganese Ore-Deposits of Georgia. 169 



from o. 10 per cent, to 0. 15 per cent., rarely rising above 0.25 

 per cent. 



Individual Properties. — No attempt will be made in this 

 paper to discuss or describe individual properties. These will 

 be described in detail in a forthcoming report by the writer, to 

 be published by the Geological Survey of Georgia. Among 

 some of the more important properties in the district which 

 have yielded much ore of superior quality may be mentioned 

 the Blue Ridge Mining Company (formerly known as the Eto- 

 wah Mining Company), the Dobbins, the Georgia Manganese 

 and Iron Company, the Mihier-Harris, the Satterfield, the John 

 P. Stegall, the Chumler Hill and the Southern Mining Com- 

 pany. Innumerable single lots of land, distributed over all 

 parts of the district and owned by different individuals, have 

 produced large quantities of high-grade ore, but the lack of 

 space forbids their mention by name. 



The Cave Spring District. 



The Cave Spring district occupies the southwest part of 

 Floyd county and the northwest corner of Polk county, Geor- 

 gia. The town of Cave Spring, from which the district takes 

 its name, is within six miles of the Alabama-Georgia line, about 

 15 miles southwest of Rome. The ore-deposits of manganese 

 extend about 5 miles south of the town into Polk county, and 

 continue northeastward from the town for a distance of 7 or 8 

 miles in Floyd county. Practically the entire production of 

 manganese ores in Georgia has been from the Cartersville and 

 Cave Spring districts. 



Topography. — The topography of the Cave Spring area is 

 shown on the accompanying map (Fig. 8). The region is one 

 in which the topography is strikingly shown to be dependent 

 on the structure and character of the underlying rocks. The 

 strata are broken by numerous approximate north-south faults 

 of the ordinary Appalachian type, resulting in monoclinal 

 blocks, which dip somewhat steeply to the east and southeast. 

 Faulting has brought the underlying shale to the surface in 

 contact with the overlying Knox dolomite, and valleys are 



