Sea- Cliff of the Lower Saint Lawrence. 



299 



The long island, lying a mile and a half off-shore, is partly 

 separated from the mainland at low tide by a narrow tongue 

 of water ; mud-flats occupy the rest of the interval. At the 

 north end of the island, off the mouth of Kiviere Verte, the 

 delta of this river laps out across the channel, connecting the 

 island to the south shore (see figure 2). Frotn the village of 

 Isle Verte northeastward for six miles to Point a la Loup, a 

 straight line of " earth cliffs 50 to 100 feet high" is shown on 

 the chart, lying from one-fourth to one mile inland from the 

 modern beach. The Intercolonial Railway, here, approaches 

 close to the brink of the bluff, and affords a plain view of the 

 terrace which lies at the foot of it. A profile of the shelf, 

 drawn to scale from chart No. 202, at this place, emphasizes 

 the extreme flatness of this terrace, which runs out three and a 

 half miles to reach a depth of five fathoms. The ebb tide lays 

 bare nearly two miles of flats (see profile C-D in figure 8). 



Fig. 3. 



Fig. 3. Profiles of the twenty-foot terrace, constructed from Chart 202 ; 

 A-B at Trois Pistoles ; C-D near Isle Verte. 



At Trois Pistoles the cliff and terrace lie along the north edge 

 of the village. From the shore the old cliffs can be seen 

 stretching eastward with gentle curvature for two miles or 

 more. Not far beyond, near St. Simon, a long range of rocky 

 ridges, rising to altitudes of 400 to 500 feet, forms a coast 

 where instead of mature sea-cliffs the waves seem to have been 

 able only to build pocket beaches among the ledges at the 

 inner edge of the shelf. The coast from here past Saint 

 Pabien is bold, and the shelf is narrow, until it approaches 

 Bic. 



Across the Saint Lawrence, at the mouth of the Saguenay, 

 no distinct marks of wave work at the twenty-foot level were 



