Willow Creek (Oldman River)
| Willow Creek | ||
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| Data | ||
| location | Alberta ( Canada ) | |
| River system | Nelson River | |
| Drain over | Oldman River → South Saskatchewan River → Saskatchewan River → Nelson River → Hudson Bay | |
| origin |
Canadian Rockies 50 ° 17 ′ 57 ″ N , 114 ° 25 ′ 36 ″ W. |
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| Source height | approx. 1720 m | |
| muzzle |
Oldman River Coordinates: 49 ° 46 ′ 14 " N , 113 ° 20 ′ 57" W 49 ° 46 ′ 14 " N , 113 ° 20 ′ 57" W. |
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| Mouth height | approx. 930 m | |
| Height difference | approx. 790 m | |
| Bottom slope | approx. 4.4 ‰ | |
| length | approx. 180 km | |
| Catchment area | approx. 2520 km² | |
| Discharge A Eo : 2290 km² Location: 31 km above the mouth |
MQ 1942/1998 Mq 1942/1998 |
5.9 m³ / s 2.6 l / (s km²) |
| Right tributaries | South Willow Creek | |
| Reservoirs flowed through | Chain Lakes Reservoir | |
The Willow Creek (English for " willow river") is an approximately 180 km long left tributary of the Oldman River in the southwest of the Canadian province of Alberta .
River course
Willow Creek rises on the eastern edge of the Canadian Rockies , 7 km east of Mount Burke , at an altitude of 1720 m . Willow Creek initially flows southeast through the mountains. After 25 km he reaches the Chain Lakes Reservoir . The Chain Lakes Provincial Park is also located there . The Willow Creek now flows in an easterly direction through the foreland of the Rocky Mountains. It now shows a strongly meandering behavior up to its mouth . After another 55 km the river reaches a weir where a canal branches off to the nearby Pine Coulee Reservoir . Below the weir is Willow Creek Provincial Park . The river runs below the dam and turns south-southeast. An irrigation canal crosses the river 35 km above the mouth. After another 3 miles, Alberta Highway 2 crosses the river. Eventually the river reaches the Oldman River. The estuary is 6 km northeast of Fort Macleod .
Hydrology
The catchment area of Willow Creek covers approximately 2520 km². The mean discharge at the gauge 31 km above the mouth near Nolan is 5.9 m³ / s. The highest mean monthly discharges occur in May and June with 11.3 and 15.2 m³ / s respectively.