Graham River (Halfway River)
| Graham River | ||
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| Data | ||
| location | British Columbia (Canada) | |
| River system | Mackenzie River | |
| Drain over | Halfway River → Peace River → Slave River → Mackenzie River → Arctic Ocean | |
| Headwaters |
Muskwa Ranges , 9 km south of Robb Lake 56 ° 49 ′ 19 ″ N , 123 ° 45 ′ 50 ″ W |
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| Source height | approx. 1800 m | |
| muzzle |
Halfway River Coordinates: 56 ° 30'20 " N , 122 ° 14'7" W 56 ° 30'20 " N , 122 ° 14'7" W. |
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| Mouth height | approx. 660 m | |
| Height difference | approx. 1140 m | |
| Bottom slope | approx. 7.1 ‰ | |
| length | approx. 160 km | |
| Catchment area | approx. 2320 km² | |
| Discharge at the gauge above Colt Creek A Eo : 2140 km² Location: 12 km above the mouth |
MQ 1981/2014 Mq 1981/2014 |
23.9 m³ / s 11.2 l / (s km²) |
| Right tributaries | Horn Creek, Poutang Creek, Needham Creek | |
The Graham River is an approximately 160 km long right tributary of the Halfway River in the northeast of the Canadian province of British Columbia . The river was named after John Robinson Graham, a surveyor who fell in World War I in 1916.
River course
The Graham River rises 9 km south of Robb Lake at an altitude of about 1800 m in the Muskwa Ranges , a part of the northern Canadian Rockies . It flows through the mountains in a south-easterly direction. In the lower 60 kilometers, the Graham River turns first to the east and, after leaving the mountains, to the east-northeast. Finally he reaches the Halfway River, about 70 km above its confluence with the Peace River .
Graham-Laurier Provincial Park is located on the middle reaches . Christina Falls ( ⊙ ) is located about 95 km above the mouth of the river.
Hydrology
The catchment area of the Graham River covers approximately 2320 km². The mean discharge at the gauge 12 km above the mouth is 23.9 m³ / s. June is the month with the most discharge with an average of 90.8 m³ / s.
Fish fauna
Fish species in the Graham River include bull trout ( Salvelinus confluentus ), arctic grayling ( Thymallus arcticus ) and rainbow trout ( Oncorhynchus mykiss ).
Web links
Individual evidence
- ^ A b c Government of Canada: Historical Hydrometric Data Search Results: Station 07FA005
- ^ Graham River . In: BC Geographical Names (English)
- ^ A b c Graham-Laurier Provincial Park . BC parks. Retrieved June 20, 2018.