98 GEOLOGICAL SURVEY OF ALABAMA 



COOSA COUNTY. 



Coosa county lies almost altogether in the Piedmont 

 plateau province. 



Topographically, it is a very complex and irregular 

 watershed of the various streams constituting a drain- 

 age area S. W. into the Coosa, and S. E. into the Talla- 

 poosa rivers. In the western and north western por- 

 tions, the country is rough and much broken up, rang- 

 ing from hilly to mountainous, and reaching summit 

 elevations of 1,000 feet above sea level. In the eastern 

 and southeastern portions, the topography is much less 

 abrupt, the hills and generally flat ridges seldom reaching 

 an elevation above 300 to 500. 



Mica occurrences have been noted at various points 

 throughout the entire width from east to west of this 

 county, to the east mainly undeveloped, most of the devel- 

 oped deposits being located in the western and north- 

 western portions, along the definite southwest extension 

 into Coosa county of the mica belt as described through 

 the counties of Clay, Randolph, and Cleburne, following 

 their general and constant N.E.-S.W. strike. 



The rocks of this section mainly consist as in Clay 

 county of schists, gneisses, granites, diorites, phyllites, 

 and slates, with occasional occurrences of shale and 

 quartzite. 



Mica occurrences in the county have received very 

 little attention and no general study, recent interest and 

 development having been altogether diverted to and cen- 

 tered upon the deposits of crystalline flake graphite 

 which are extensive and valuable. 



Ivey Mine. The Ivey mica mine is located in the N. E. 

 corner of the N. W. 1/4 of the N. E. % of Section 15, 

 Township 22 N., Range 16 E. 



It is situated about 1% miles E. of Coosa river, at a 

 point approximately midway between the present main 

 power plant of the Alabama Power Company at Lock 12, 

 and the projected new power plant to be constructed at 

 Mitchell dam, six miles south of it, on Duncan's riffle, in 

 Section 15, on which dam work is already well under 

 way. 



