English: This image shows a portion of a map of the railway system in Canada West - today's Ontario - as it existed in 1857. The image shows only the eastern section of the map, cutting off the western portion around London, Ontario.
The main lines shown are, roughly from east to west:
The Grand Trunk Railway running along the north bank of Lake Ontario and curving around to Hamilton and Niagara.
The Bytown and Prescott leading from the Grand Trunk to Ottawa.
The Brockville and Ottawa leading north from Brockville and stopping in what was then the middle of nowhere.
The Grand Junction Railway (not actually built until 1870) leading from Belleville to Peterborough.
The Cobourg and Peterborough running north across Rice Lake.
The Port Hope, Lindsay and Beaverton - soon to be extended to Midland - running to the eastern side of Lake Simcoe.
The Ontario Simcoe and Huron Union running up the western side of Lake Simcoe and then turning northwest for Collingwood.
The Hamilton and Toronto running west-southwest out of Toronto.
The Great Western Railway running almost due west out of Hamilton at the western tip of Lake Ontario, as well as east-southeast of Hamilton along the southern edge of Lake Ontario.
The Toronto and Guelph running northwest out of Toronto and then east-southeast.
The Hamilton and Northwestern connecting the Great Western and Toronto and Guelph just west of Hamilton, and later connecting to Collingwood.
The Buffalo and Lake Huron running west-northwest out of Buffalo.