Grand Union Canal
![The canal at Braunston](/Images/godic/202501/16/Grand_Union_Canal_at_Braunston3204.jpg")
![The Grand Union Canal passing Trellick Tower at Westbourne Park, London](/Images/godic/202501/16/GU_Canal_Westbourne_Park3204.jpg")
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![The Thames Lock on the Grand Union Canal, Brentford, West London. Photo taken in twilight at the peak of a spring tide](/Images/godic/202501/16/Thames_Lock,_Brentford,_Spring_Tide,_Twilight,_200501133204.jpg")
The Grand Union Canal in England is part of the British canal system. Its main line starts in London and ends in Birmingham, stretching for 137 miles (220 km) with 166 locks. It has arms to places including Leicester, Slough, Aylesbury, Wendover and Northampton.