Gray Fossil Site State Route 75 Drillholes
![Fill Fill](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage/image.img.jpg/1563389010514.jpg)
Fill, recently emplaced during construction, usually reddish
![Weathered Weathered](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_2146505867/image.img.jpg/1563389237601.jpg)
Weathered, light gray or buff colored clay
![geology_gray_chert geology_gray_chert](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_1067160532/image.img.jpg/1563389216509.jpg)
Chert clasts
![Carb Carb](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_2015154576/image.img.jpg/1563389228079.jpg)
Carbonaceous material, lignite
![geology_gray_sandy geology_gray_sandy](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_668427416/image.img.jpg/1563389249945.jpg)
Sandy, or sandy layers
![Varved Varved](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_1198763531/image.img.jpg/1563389262277.jpg)
Varved or layered clay
![Soil Soil](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_748915329/image.img.jpg/1563389280653.jpg)
Reddish soil or subsoil, residual
![Boulder Boulder](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_1771714351/image.img.jpg/1563389291508.jpg)
"Boulder" interrupting the progress of drilling
![Terminated Terminated](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_1829731419/image.img.jpg/1563389299112.jpg)
Hole Terminated due to depth
![geology_gray_refusal geology_gray_refusal](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_textandimage_475875932/image.img.jpg/1563389315313.jpg)
Hole terminated due to "Refusal"
Information provided by the Tennessee Department of Transportation, from on-site auger drilling logged by geologist Larry Bolt.
Colors suggest color of material penetrated.
![geology_gray_75 geology_gray_75](/content/tn/environment/program-areas/tennessee-geological-survey/geology-redirect/gray-fossil-site-in-tennessee/state-route-75-drillholes/jcr%3acontent/content/tn_image.img.jpg/1508204931619.jpg)