Don River (Ontario)
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Don River Rivière Don |
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 Don River with the parallel Don Valley Parkway |
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| Data | ||
| location | Toronto in Ontario (Canada) | |
| River system | Saint Lawrence River | |
| Drain over | Saint Lawrence River → Atlantic | |
| confluence | from Don River East Branch and West Branch in East York 43 ° 42 ′ 11 ″ N , 79 ° 20 ′ 7 ″ W |
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| muzzle | in the Port of Old Toronto Coordinates: 43 ° 39 ′ 2 " N , 79 ° 20 ′ 51" W 43 ° 39 ′ 2 " N , 79 ° 20 ′ 51" W
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| length | 38 km (including a longer source river) | |
| Catchment area | 369 km² | |
| Drain |
MQ |
4 m³ / s |
| Big cities | Toronto | |
The Don River ( French Rivière Don ) is a 38 km long river in Ontario , Canada , whose headwaters arise in the moraine range of the Oak Ridges and flow through the cities of Richmond Hill , Vaughan and Markham and which flows into Lake Ontario after their confluence in Toronto .
The river was named by Governor John Graves Simcoe after the River Don in South Yorkshire . The Don River has an average discharge of 4 m³ / s and a catchment area of around 360 km². Its left tributaries are Castle Frank Brook and Taylor-Massey Creek, its right is German Mills Creek. The Don Valley gorge, through which the river runs , was formed 12,000 years ago during the last ice age . In relation to the size of the Don Valley, the Don River carries little water, which has been accelerated as a result of the urbanization of Toronto. Along the Don Valley of the same name Don Valley Parkway, an inner-city highway leading to the north of Highway 401 in the Highway 404 leads. Due to the geological nature of the river bed in the gorge, the water can rise by 2 m within three hours during heavy rainfall. The Hurricane Hazel in 1954 was the outflow of 4 to 1700 m³ / s increase.
Web links
- toronto.ca: Don River
- Information on the Don River catchment area
- Great Lakes Portrait: Bringing back the Don River
- Geographical Names of Canada: Don River
- Geographical Names of Canada: Don River East Branch
- Geographical Names of Canada: Don River West Branch
Individual evidence
- ^ Natural Resources Canada
- ^ Lower Don River West Remedial Flood Protection Project, Class Environmental Assessment Environmental Study Report. 2006. Toronto and Region Conservation Authority. Section 4.1.