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See also:LAKE See also:ONTARIO , the smallest and most easterly of the See also:Great Lakes of See also:North .See also:America . It lies between 43° II' and 440 12' N. and 76° 12' and 79° 49' W., and is bounded on the N. by the See also:province of See also:Ontario and on the S. by the See also:state of New See also:York . It is roughly elliptical, its See also:major See also:axis, 18o m. See also:long, lying nearly See also:east and See also:west, and its greatest breadth is 53 M . The See also:area of its See also:water See also:surface is 7260 sq. m. and the See also:total area of its See also:basin 32,980 sq. m . Its greatest See also:depth is 738 ft., its See also:average depth much in excess of that of See also:Lake See also:Erie, and it is as a See also:general See also:rule See also:free from outlying shoals or dangers . On the north See also:side of the lake the See also:land rises gradually from the See also:shore, and spreads out into broad plains, which are thickly settled by farmers . A marked feature of the See also:topography of the See also:south shore is what is known as the Lake See also:ridge, or, as it approaches the See also:Niagara See also:river, the See also:Mountain ridge . This ridge extends, with breaks, from Sodus to the Niagara river, and is distant from the lake 3 to 8 m . The See also:low ground between it and the shore, and between the Niagara escarpment and the water on the See also:Canadian shore, is a celebrated See also:fruit growing See also:district, covered with See also:vine-yards, See also:peach, See also:apple and See also:pear orchards and fruit farms . The Niagara river is the See also:main feeder of the lake; the other largest See also:rivers emptying into the lake are the Genesee, See also:Oswego and See also:Black from the south side, and the See also:Trent, which discharges into the upper end of the See also:bay of Quinte, a picturesque inlet 70 M. long, on the north shore, between the See also:peninsula of See also:Prince See also:Edward, near the eastern extremity of the lake, and the mainland . The east end of the lake, where it is 30 M. wide, is crossed by a See also:chain of five islands, and the lake has its outlet near See also:Kingston, where it discharges into the See also:head of the St See also:Lawrence river between a See also:group of islands . Elsewhere the lake is practically free from islands .
There is a general surface current down the lake towards the eastward of about 8 m. a See also:day, strongest along the south shore, but no noticeable return current
.
As a result of its relatively great depth there are seldom any great fluctuations of level in this lake due to See also:wind disturbance, but the lake follows the general rule of the Great Lakes (q.v.) of seasonal and See also:annual variation
.
See also:Standard high water (of 1870) is 2.77 ft. below the mean level, of 246.18 ft. above mean See also:sea-level, and standard low water 3'24 ft. below the same See also:plane
.
The lake never freezes over, and is less obstructed by See also:ice than the other lakes, but the harbours are closed by ice from about the See also:middle of See also:December to the middle of See also:April
.
The See also:commerce of Lake Ontario is limited in comparison with that of the lakes above Niagara Falls, and is restricted to vessels
that can pass through the Welland See also:canal locks, which are 270 ft. long, 45 ft. wide and 14 ft. deep
.
See also:Freight consists principally of See also:coal shipped from See also:Charlotte, Great and Little Sodus bays and Oswego to Canadian ports in the lakes, and to ports on the St Lawrence river; of See also:grain shipped through the Welland canal to the St Lawrence; and of See also:lumber from Canadian ports
.
There is a large passenger See also:traffic, including See also:pleasure trips, principally radiating from See also:Toronto
.
Ports on the lake are limited in capacity to vessels See also:drawing not more than 14 ft. of water
.
The See also:principal Canadian ports are Kingston, at the head of the St Lawrence river; Toronto, where the See also:harbour is formed by an See also:island with improved entrance channels constructed both east and west of it; and See also:
It accommodates vessels 255 ft. in length, with a See also:draught of 14 ft
.
The See also: |
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