JACKSON. G 5 . 105 



Forks of road near C. H. Estabrook's, • • • . . 1705' 



» " G. Gelatt's 1725' 



" " M. Gates', 1750' 



Level of Butler lake, 1665' 



Forks of road near E. B. Larabee's, 1625' 



W. D. Birdsall's, ...••• 1640' 



" " T. Perry's, 1615' 



" F.Yale's, 1580' 



" •« A. Bolch's 1485' 



Cross roads near C. Witter's 1525' 



11. New Milford, in Susquehanna county. 



This is one of the largest townships in the county, and 

 lies directly west from Jackson, while Great Bend forms its 

 northern boundary. 



The northern half is drained by Salt Lick creek north- 

 ward into the Susquehanna river, while the southern half 

 sends its drainage southward by way of Martin' s creek and 

 the head branches of the Tunkhannock, all of which finally 

 reaches the Susquehanna. 



Drift-filled divide. — A very singular feature, in the top- 

 ography, is seen in the manner Martin's creek heads up 

 against one of the branches of Salt Lick. The two streams 

 are separated by a very low Drift-filled "notch" in the di- 

 vide, while the hills both east and west rise 500' higher. 

 This great cut through the divide may have been made in 

 either of two ways, that is, by Glacial ice advancing south- 

 ward, or flowing water coming northward. I incline to the 

 former hypothesis, and believe that the great notch is the 

 result of ice erosion during the Glacial epoch. But if this 

 be not true, then in preglacial times, a stream of water, 

 much larger than the present, Salt Lick took its rise much 

 further south, and flowing northward along what is now 

 Martin's creek, gradually cut its way down through the 

 rocks ; but subsequently a large dam of morainic debris was 

 piled so high across its channel at the present summit of 

 the "notch" by Glacial agencies, that the water in its south- 

 ern channel found a lower outlet southward into the Tunk- 

 hannock system, probably through a glacial cut, so that 



