REPORT OF THE DIRECTOR I915 I79 



LEVELS CORRELATED WITH THE COVEVILLE OUTLET ^ 



(Map 2) 



Professor Woodworth postulates two hypotheses for the death 

 of Lake Albany: either it was drained off from the Albany-Fort 

 Edward plains as its outlet through the Hudson highlands became 

 lowered by stream cutting, or else a downward tilting toward the 

 north at this time (of which he thinks there is some evidence) 

 accomplished the same effect (Woodworth, 1905, p. 191-93). Lake 

 Vermont then came into existence as such, and its outlet was by a 

 spillway at Coveville into the old rock gorge of the Hudson river 

 (Woodworth, 1905, pi. 11). With this stage of the waters should 

 be correlated the shore line phenomena along his line C-D, plate 28. 

 This line passes through Crown Point at approximately the 450 foot 

 contour, which shows very marked evidence of a long continued 

 stand of the lake at this level. 



The approximate outline of the embayment at this stage is shown 

 on map 2. 



Evidence 



At the base of Bulwagga mountain northwest of Carl Russell's 

 house is to be seen a shore line at 440-460 feet. It is interrupted 

 at several places by recent dissection, but from a distance its con- 

 tinuous line is apparent. A sample of the soil here showed fine 

 sand. About 50 feet above this shore line is a broad rocky terrace 

 sloping upward 20 or 30 feet to the base of the cliff. On the " South 

 road " between Crown Point village and Renne Corners, a little to 

 the northeast of the brick schoolhouse, is a knoll of morainic origin 

 described above (pages 11 and 12). Around its southern face and 

 eastern end curves the shore line of this stage of the glacial lake. 

 Below this line is a sandy plain which is the old bed of this stage of 

 the lake. It is now dissected by streams, and slopes gently to the 

 east and south. 



Along the southwest base of Breed hill the shore line can be dis- 

 cerned. South of Leon Sage's house on the Townsend road are bare 

 ledges of rock that must have risen a little above the water level. 

 In the lee of one of them is a small, sandy shoal deposit consisting 

 of coarse sand with pebbles. Farther west, the fiat-topped, loam- 

 covered hills rise to near the same level. 



A well-marked terrace was cut into Sugar hill on the highest 

 portion of its southeast aspect. The summit of the hill rises as a 



1 Woodworth, 1905, p. 196-98 and pi. 11 and 28, line C-D. 



12 



