The furthest sources of the Ottawa River are unknown.[143] It rises to importance at the outlet from Lake Temiscaming, 350 miles west of its junction with the St. Lawrence.[144] Beyond the Falls and Portage des Allumettes, 110 miles above Hull, this stream has been little explored. There it is divided into two channels by a large island fifteen miles long: the southernmost of these expands into the width of four or five miles, and communicates by a branch of the river with the Mud and Musk Rat Lakes. Twelve miles further south the river again forms two branches, including an extensive and beautiful island twenty miles in length; numerous rapids and cascades diversify this wild but lovely scene; thence to the foot of the Chenaux, wooded islands in picturesque variety deck the bosom of the stream, and the bright blue waters here wind their way for three miles through a channel of pure white marble. Nature has bestowed abundant fertility as well as beauty upon this favored district. The Gatineau River joins the Ottawa near Hull, after a course of great length. This stream is navigated by canoes for more than 300 miles, traversing an immense valley of rich soil and picturesque scenery.
At the foot of the Chenaux the magnificent Lake des Chats opens to view, in length about fifteen miles; the shores are strangely indented, and numbers of wooded islands stud the surface of the clear waters. At the foot of the lake there are falls and rapids;[145] thence to Lake Chaudière, a distance of six miles, the channel narrows, but expands again to form that beautiful and extensive basin. Rapids again succeed, and continue to the Chaudière Falls. The boiling pool into which these waters descend is of great depth: the sounding-line does not reach the bottom at the length of 300 feet. It is supposed that the main body of the river flows by a subterraneous passage, and rises again half a mile lower down. Below the Chaudière Falls the navigation is uninterrupted to Grenville, sixty miles distant. The current is scarcely perceptible; the banks are low, and generally over-flowed in the spring; but the varying breadth of the river, the numerous islands, the magnificent forests, and the crystal purity of the waters, lend a charm to the somewhat monotonous beauty of the scene. At Grenville commences the Long Sault, a swift and dangerous rapid, which continues with intervals till it falls into the still Lake of the Two Mountains. Below the heights from whence this sheet of water derives its name, the well-known Rapids of St. Anne's discharge the main stream into the waters of the St. Lawrence.[146]
Below the island of Montreal the St. Lawrence continues, in varying breadth and considerable depth, to Sorel, where it is joined by the Richelieu River from the south; thence opens the expanse of Lake St. Peter, shallow and uninteresting; after twenty-five miles the Great River contracts again, receives in its course the waters of the St. Maurice, and other large streams; and 180 miles below Montreal the vast flood pours through the narrow channel that lies under the shadow of Quebec.[147] Below this strait lies a deep basin, nearly four miles wide, formed by the head of the Island of Orleans: the main channel continues by the south shore. It would be wearisome to tell of all the numerous and beautiful islands that deck the bosom of the St. Lawrence from Quebec to the Gulf. The river gradually expands till it reaches a considerable breadth at the mouth of the Saguenay. There is a dark shade for many miles below where this great tributary pours its gloomy flood into the pure waters of the St. Lawrence: 120 miles westward it flows from a large, circular sheet of water, called Lake St. John; but the furthest sources lie in the unknown regions of the west and north. For about half its course, from the lake to Tadoussac at the mouth, the banks are rich and fertile; but thence cliffs rise abruptly out of the water to a lofty height—sometimes 2000 feet—and two or three miles apart. The depth of the Saguenay is very great, and the surrounding scenery is of a magnificent but desolate character.
Below the entrance of the Saguenay the St. Lawrence increases to twenty miles across, at the Bay of Seven Islands to seventy, at the head of the large and unexplored island of Anticosti to ninety, and at the point where it may be said to enter the Gulf between Gaspé and the Labrador coast, reaches the enormous breadth of 120 miles. In mid-channel both coasts can be seen; the mountains on the north shore rise to a great height in a continuous range, their peaks capped with eternal snows.
Having traced this vast chain of water communication from its remotest links, it is now time to speak of the magnificent territory which it opens to the commerce and enterprise of civilized man.
Upper or Western Canada[148] is marked off from the eastern province by the natural boundary of the Ottawa or Grand River. It consists almost throughout of one uniform plain. In all those districts hitherto settled or explored, there is scarcely a single eminence that can be called a hill, although traversed by two wide ridges, rising above the usual level of the country. The greater of these elevations passes through nearly the whole extent of the province from southeast to northwest, separating the waters falling into the St. Lawrence and the great lakes from those tributary to the Ottawa: the highest point is forty miles north of Kingston, being also the most elevated level on that magnificent modern work, the Rideau Canal;[149] it is 290 feet above the Ottawa at Bytown, and 160 feet higher than the surface of Lake Ontario. Toward these waters the plain descends at the gradient of about four feet in the mile; this declivity is imperceptible to the eye, and is varied by gently undulating slopes and inequalities. Beyond the broad, rich valley lying to the north of this elevation there is a rocky and mountainous country; still farther north are seen snow-covered peaks of a great but unknown height; thence to the pole extends the dreary region of the Hudson Bay territory.
The lesser elevation begins near the eastern extremity of Ontario, and runs almost parallel with the shores of the lake to a point about twenty-four miles northwest from Toronto, where it separates the streams flowing into Lakes Huron and Ontario: it then passes southeast between Lakes Erie and Ontario, and terminates on the Genesee in the United States. This has a more perceptible elevation than the southern ridge, and in some places rises into bold heights.
The only portion of the vast plain of Western Canada surveyed or effectually explored is included by a line drawn from the eastern coast of Lake Huron to the Ottawa River, and the northern shores of the great chain of lake and river; this is, however, nearly as large as the whole of England.
The natural features of Lower or Eastern Canada are unsurpassed by those of any other country in grace and variety: rivers, lakes, mountains, forests, prairies, and cataracts are grouped together in endless combinations of beauty and magnificence. The eastern districts, beginning with the bold sea-coast and broad waters of the St. Lawrence, are high, mountainous, and clothed with dark forests on both sides, down to the very margin of the river. To the north, a lofty and rugged range of heights runs parallel with the shore as far westward as Quebec; thence it bends west and southwest to the banks of the Ottawa. To the south, the elevated ridge, where it reaches within sixty miles of Quebec, turns from the parallel of the St. Lawrence southwest and south into the United States; this ridge, known by the name of the Alleganies, rises abruptly out of the Gulf of St. Lawrence at Percé, between the Baye de Chaleur and Gaspé Cape, and is more distant from the Great River than that upon the northern shore. Where the Alleganies enter the United States they divide the plains of the Atlantic coast from the basin of the Ohio; their greatest height is about 4000 feet above the level of the sea.
The Valley of the St. Lawrence, lying between these two ranges of heights, is marked by great diversities of hill, plain, and valley. Both from the north and south numerous rivers pour