Little Bow River
| Little Bow River | ||
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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 | |
| Headwaters | Urban area of the High River 50 ° 34 ′ 27 ″ N , 113 ° 52 ′ 0 ″ W |
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| Source height | approx. 1040 m | |
| muzzle |
Oldman River Coordinates: 49 ° 53 ′ 17 " N , 112 ° 28 ′ 31" W 49 ° 53 ′ 17 " N , 112 ° 28 ′ 31" W. |
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| Mouth height | approx. 770 m | |
| Height difference | approx. 270 m | |
| Bottom slope | approx. 1.2 ‰ | |
| length | approx. 225 km | |
| Catchment area | 5900 km² | |
| Reservoirs flowed through | Twin Valley Reservoir , Travers Reservoir | |
| Small towns | High river | |
| Communities | Carmangay | |
| Incoming and outgoing water from the Highwood River and Bow River for irrigation purposes | ||
The Little Bow River is an approximately 225 km long left tributary of the Oldman River in the southwest of the Canadian province of Alberta .
River course
The Little Bow River has its source in the High River metropolitan area . It is initially fed with water from the Highwood River via a canal . It flows for the first 90 km in a south-southeast direction through the prairie of Alberta. After 70 km, the Little Bow River is dammed into the 12 km long Twin Valley Reservoir . The Little Bow River turns east in the middle reaches. He passes the village of Carmangay . A dam built in 1954 dammed the Little Bow River over a length of 20 km to the Travers Reservoir . On the north bank of the reservoir is the Little Bow River Provincial Park . From the man-made MacGregor Lake to the north , water diverted from the Bow River enters the reservoir. On the east side of the dam, a canal leads to Little Bow Lake to the east , which is used to irrigate the agricultural land further east. Below the Travers Reservoir, the Little Bow River flows 58 km in a predominantly south-southeast direction before finally flowing into the Oldman River 30 km northeast of Lethbridge . The Little Bow River shows a strongly meandering behavior along its entire course .
Hydrology
The catchment area of the Little Bow River covers 5900 km². The effective catchment area is 3280 km². The mean monthly runoff from May to October fluctuates between 1.7 and 2.9 m³ / s. During the floods in June 2013, water was drained from the Travers Reservoir, so that the discharge below the dam increased briefly from the usual 3 m³ / s to 60 m³ / s.