18 District traversed by the 



appearance of immense inland precipices of sienitc, frac- 

 tured in the like extraordinary manner as those seen on 

 the rivers and lakes explored in the first portion of the 

 journey. At Lac du Sable we could clearly distinguish that 

 the country to east and south-east was hilly and broken, and 

 it was found the same for a distance of twenty miles below 

 that lake. Hei*e a subsidence in the rock occiu's and the 

 river falls over a precipice of about one hundred feet in 

 height. From hence the hills appear to stretch more to 

 the E. S. E, and we lost sight of them altogether a few 

 miles below the falls ; and the east shore of the river from 

 thence, in general consisted of a flat sandy tract spreading 

 in a direction towards Grenville. 



About nine miles above its junction with the Ottawa 

 the aux Lievres rushes over a bed of sicnite, forming a 

 series df splendid falls and i-apids, surpassing in pictu- 

 resque beauty, any thing of the kind we had before seen. 



On the north shore of the River Ottawa we again fell in 

 with the mountain range running j)arallel with the river in 

 a south-east direction. These hills varied from several miles 

 to a few hundred yards distance from the water side. Near 

 Grenville this range appears to run towards the E. N. E. 

 in a direction (as before stated) to join those hills which 

 branch off from the River St. Maurice. It is between this 

 mountain line and the St. Lawrence and Ottawa that the 

 limestone formation is met with, covered Avith a good soil 

 bearing fine timber. The principal places where the 

 secondary strata was seen, were Grenville, on the Ottawa, 

 and near the Gabcllc Rapids on the St. Maurice ; it is also 

 known to exist at the back of Montreal. 



Having thus shewn that the priinttlve range of hills, 

 covered with sand extends far into the interior from the 



