92 G 5 . REPORT OF PROGRESS. I. C. WHITE. 



Rock" from the fact that on the face of the sandstone 

 stratum No. 3, which juts out boldly along the river, the 

 Indians have painted figures in red. 



On the opposite side of the river, in a cut along the Erie 

 R.R., we see 5' more of flaggy sandstone above the top of 

 No. 1 and then above that come 30' of olive shales to top of 

 bluff. 



Limestone. — Here along the R.R. is seen the impure 

 limestone seen one mile below, and it can be traced con- 

 stantly in the cuttings of the R.R. nearly to Great Bend. 

 Opposite the gorge it comes 30' above the level of the river 

 showing a slight rise in the strata as we go eastward from 

 Great Bend Depot. 



About one mile below "Red Rock," on a small stream 

 which puts into the right bank of the Susquehanna, there 

 is a flagstone quarry at the horizon of the Great Bend lime- 

 stone, and some very nice flags are obtained and used in the 

 construction of sidewalks. 



A short distance northeast from Great Bend Depot, and 

 \\ miles in a direct line from "Fort '76" cliff the following 

 section was made by Prof. Richardson of the Great Bend 

 Graded School, and kindly placed at my disposal : (Fig. 17.) 



Hinkerma ledge section. 



1. Massive, gray sandstone, ("Hinkerma ledge,") 30' 



2. Concealed, 60' 



3. Sandstone, 5 



4. Concealed, 50' 



5. Sandstone, 5' 



6. Concealed, 40' 



7. Sandstone, 5' 



8. Concealed, 50' 



9. Sandstone, 8 



10. Concealed, 15' 



11. Sandstone, 6' 



12. Concealed, 80' 



13. Sandstone, (New Mil ford lower), 10' 



14. Concealed, 145' 



15. Olive shales 10' 



16. Concealed to level of the Susquehanna, 245' 



The series of sandstones Nos. 1 to 13 inclusive repre- 

 sent the New Mllford group. Its average thickness is about 



