SPECIAL TOPOGRAPHIC FEATURES 219 



given any specific name. Between Katchewanaka and Rice lakes the 

 main stream is called the Otonabee river. Below Rice lake to Trenton 

 it is called the Trent river. From Trenton to lake Ontario it is usually 

 called the bay of Quinte. It is thus found that the Trent is really a 

 very complex system of valleys, and a more detailed description and 

 discussion is given in the special paragraphs on the Trent River system. 

 The following table gives the elevation above sealevel of each of the 

 more important lakes of the Trent River system : 



Feet 



Balsam 609 



Cameron 606 



Sturgeon - 581 



Pigeon 575 



Buckhorn 575 



Chemong 575 



Deer 565 



Stony 539 



Clear 539 



Katchewanaka 548 



Rice 378 



Ontario 247 



Prince Edivard County topography. — Two of the principal valleys, whose 

 union forms the bay of Quinte as it now is, have had a notable effect on 

 the development of the topography of that part of the district known 

 as Prince Edward county. The two parts of the bay, known respectively 

 as the Long reach (or the Ninemiie reach) and the Twelvemile reach, 

 converge south westward toward Picton bay. Southwest from Picton to- 

 ward East lake they continue as a single well marked valley, partly 

 drift blocked at Picton, with a steep, often cliffed, wall on the southeast 

 side. The Long reach has intercepted any drainage which normally 

 would have crossed Prince Edward from the northeast, and so we find 

 that its western wall is marked by a cliff whose present height above 

 waterlevel is about 150 feet, or whose crest rises about 185 feet above the 

 bottom of the now partly submerged valley. There are but two minor 

 obsequent streams that have barely incised notches in the cliff front. 

 On the upland, west of the Long reach, head several small streams whose 

 valleys belong to the second type of valley mentioned above. In cross- 

 ing Prince Edward county toward the southeast, ten well marked low 

 cuestas, including the one between East lake and Picton bay, with north 

 facing steep fronts and gentle south dipping back slopes, are met with, 

 besides a few of minor importance. It has not yet been possible to carry 

 the detailed study of the topography far enough to determine the inter- 

 relations of all of these valleys whose existence is thus indicated, but 



XXIX— Bull. Geol. Soc. Am., Vol. 15, 1903 



