Plate from the Illustrated London News. The surface of the River Thames, London was completely blocked with ice during February of 1870, which caused an almost complete suspension of steamboat navigation. In some parts of the river the pieces of ice were 2ft thick and 20ft long. The combined forces of the wind and tide and the weight of the ice caused several vessels to break away from their moorings and collide with others. However, the ice also encouraged people out skating and sliding on parts of the river.
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