Geologic units in Georgia (state in United States)
Includes Anakeesta Formation Darkgray, bluishgray, and black slate with darkgray interbeds of finegrained sandstone. Thickness 3,000 to 4,500 feet; Thunderhead Sandstone Coarse, gray feldspathic sandstone, graywacke, and conglomerate; occurs in massive ledges; graded bedding and blue quartz characteristic. Thickness 5,500 to 6,300 feet; Elkmont Sandstone .