SOME LOCAL DETAILS. 



189 



To the eastward of the HKJUtli of Tr(ji.s Pistoles river, 

 the fi.'st terrace above mentioned is brouw-lit out to the 

 siiore by a projectin,-,' point of rock. In ])roceeding west- 

 ward toward isle Verte, it recedes from the coast, leavin- 

 a flat of considerable breadth, which represents the lowest 

 terrace seen on this part of the St. Lawrence, and is 

 elevated only a few feet above the sea. This ilat is in 

 many places thickly strewn with lari^e boulders, probably 

 left when it was excavated out of the clay. In proceeding 

 westward the first or railway terrace of Trois I'istoles, 

 inland of the ilat al>ove mentioned, is seen to consist of 

 boulder-clay, either in consequence of this part of the 

 deposit thickening in this direction, or of the Leda clay 

 passing into boulder-clay. It still, however, at isle A'erte, 

 contains a few sliells of Lahi glaciaJU in tough reddish 

 clay holding l)oulders. 



liivterc-diL-Lotip (nul Cacoi/na. — The country around 

 Cacouna and Kiviere-du-Loup rests on the sliales, sand- 

 stones, antl conglomerates of the Quebec aiul Potsdam 

 groups of Sir W. K Logan. As these rocks vary much in 

 hardness, and are also highly inclined and much (Hsturbed, 

 the denudation to which they have l»een subjected has 

 caused them to present a somewhat uneven surface. 

 They form long ridges running nearly parallel to the 

 coast, or north-east and south-west, with interveniiK^ 

 longitudiuid valleys excavated in the softer beds. One of 

 these ridges forms the long reef off Cacouna, which is 

 bare oidy at low tide; another, running close to the 

 shore, supports the village of Cacouna ; another forms tlie 

 point which is terminated by the pier ; a fourth rises into 

 Mount Pilote; and a fifth stretches behind the town of 

 Kiviere-du-Loup. 



