REPORT OF THE DIRECTOR AND STATE GEOLOGIST 1900 rll5 



There are four low passes across this divide to which reference 

 will be made. The altitudes are shown by the contour lines of 

 the map to within at least 20 feet. 



There is a low notch or col 2 miles southeast of New Wood- 

 stock village, and over a mile north of Sheds Corners. The lowest 

 point is at the wesit side of the moraine, with a map altitude of 

 1360 to 1380 feet. The Elmira, Cortland and Northern branch of 

 the Lehigh Valley railroad takes advantage of the lowest point, 

 but makes a cutting at the summit. There is no defined channel 

 ■across the col, from which we conclude that it did not carry the 

 overflow of any large lake. Theoretically, however, judging from 

 the topography, it seems likely that a small lake, perhaps 3 miles 

 long, existed in the valley north of the moraine, covering the site 

 of New Woodstock. When the receding ice front exposed ground 

 northwest of the village, at about 1360 feet, the small and short- 

 lived New Woodstock glacial lake was drained into the larger 

 lake now to be described. 



One mile south of Deruyter reservoir are two passes across the 

 divide separated by a hill. The map makes the altitude of the 

 eastern pass 1300+ feet and of the western, 1320 feet, but an 

 aneroid measurement makes the latter pass the lower. The west- 

 ern col is an extensive swamp, still partly in fore sit, with definite 

 channels leading south. The northwest-southeast road, 2 miles 

 south of the reservoir, crosses the outlet channel a mile below the 

 summit, at a point where it has an eastward loop. The eastern 

 col ishows less action of flowing water. It carries the state ditch 

 which diverts into the reservoir water that naturally had south- 

 ern flow. A small, local, glacial lake, about 4 miles long, which 

 we may call the Deruyter lake, had its outlet by one or both of 

 these passes till the ice dam had receded past the north end of 

 Arab hill. 



The lowest pass acroiss the divide and the one which was the 

 chief outlet of the glacial waters, is at the north end of Arab hill, 

 4 miles west of New Woodstock and 2 miles south of Delphi. It 

 leads west toward Fabius and has a map altitude of 1280 + feet. 

 The col is an open valley, cleared of forest, and shows plainly the 



