218 H. L. FAIRCPIILD POST-GLACIAL UPLIFT OF X. E. AMERICA 



The part of the Saint Maurice River valley followed by the Transconti- 

 nental Railway and its south-leading tributaries will give the deltas of 

 the marine summit without glacial complication. 



In the valley of Jacques C artier River extensive inferior plains occur 

 at Valcartier, and at Saint Raymond, in the Saint Anne River valley, is 

 a very handsome display of terraced plains, also of inferior levels, as 

 slioidd be expected of such wide-spread deposits. The deltas of the sum- 

 mit level will be found northward in these two valleys. 



Lake Saint John, with its fertile surrounding territory, lies very low, 

 only 341 feet above tide. The valley must have been submerged about 660 

 feet, and the extensive detrital plains which have been noted by Chalmers 

 and others up to height of 700 feet are much below the marine summit. 

 The rivers, with the long names, flowing into Lake Saint John from tlie 

 northwest will undoubtedly give the approximate marine summit without 

 complication of glacial waters. 



