FEATURES OF THE SCOTTSBURG LAKE. 361 



gradually for nearly two miles more to the village of Scottsburg, Avhich 

 has an estimated altitude of about 900 feet. A small stream, called 

 simply the Inlet, drains the higher, narrow valley south of the village 

 and flows on in a sinuous course to the lake. The only considerable 

 tributary is Conesus creek, from the east, which joins near the lake. 



DIVIDE. 



The bounding walls of the valley are unbroken except at one ]:)oint. A 

 remarkable depression or postglacial transverse valle}^ severs the western 

 wall at the village of Scottsburg and leads to the Canaseraga (Dansville) 

 valley, about three miles away. This divide is at nearly the same alti- 

 tude as the village, or about 900 feet, and gave free connection with the 

 Dansville lake at the higher levels of the latter. 



DELTAS AND WATER-LEVELS. 



There are two conspicuous levels in the Scottsburg valley. The higher 

 one is at about 1,250 feet and corresponds to the Dansville summit levels. 

 The finest example seen of this level is at the village of Conesus on the 

 Erie railroad, three miles east of the head of the lake, where the Conesus 

 creek debouched into the expanded waters held up to the level of the 

 Dansville lake. The lower level is seen at many points along the valley 

 sides where streams have built deltas at a height estimated at 80 to 100 

 feet above the lake, which has an altitude of 819 feet. The village of 

 Scottsburg is located on the delta of Inlet creek. The large lower delta 

 of Conesus creek is, in its highest part, apparently something over 100 

 feet above the present lake. 



LAKE HISTORY. 



The valley of Conesus extends so far north of the parallel of Mount 

 Morris that the north end was probably closed by the ice after the Dans- 

 ville lake had been lowered into the vast Warren water which then buried 

 all the ice-uncovered area of western New York and the Great lakes. In 

 this event it would have overflowed by the gap at Scottsburg, but the 

 fall could not have been many feet, and it is possible that this col was 

 near the level of the Warren lake. Further observation is required to 

 determine the full history of the Scottsburg water. 



The Naples Lake. 



ca na nda ig ua va lle y. 



The present lake is about 15 miles long. The village of Nai)les lies 

 about 4 miles south of the head of the lake, and it is 4 miles more to 

 the col. The valley is from one to two miles wide, but at Naples is 

 narrowed to only aijout half a mile. The moraine is remarkably de- 

 veloi)ed and occupies 4 miles of the head of the valley, from near Naples 



LII — HiT.i,. (iy.oi.. Hor. Am.. Vol.. G. 1894, 



