A stone-boat is a type of sled (sledge) for moving heavy objects[1] such as stones or hay bales.
Originally they were for animal-powered transport used with horses or oxen to clear fields of stones and other uses and may still be used with animals or tractors today.
[2] The device may look like a low-profile sled with timber runners or have a flat bottom of planks secured together to slide over soft ground or snow.
Originally made of wood, metal versions exist with hinges.
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