Grant River
| Grant River | ||
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| Data | ||
| Water code | US : 1565740 | |
| location | Grant County in Wisconsin (USA) | |
| River system | Mississippi River | |
| Drain over | Mississippi River → Gulf of Mexico | |
| source | at Lancaster 42 ° 53 ′ 8 ″ N , 90 ° 43 ′ 41 ″ W. |
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| muzzle | near Potosi in the Mississippi River Coordinates: 42 ° 39 '48 " N , 90 ° 44' 48" W 42 ° 39 '48 " N , 90 ° 44' 48" W. |
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| Mouth height |
185 m
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| length | 71 km | |
The Grant River is a 71 km long tributary of the Mississippi River in southwest Wisconsin in the United States . It flows in its entire length through Grant County . The city of Potosi is located near its mouth . The United States Army Corps of Engineers maintains a department at the mouth.