Stepping stones
Stepping stones or stepstones are sets of stones arranged to form an improvised causeway that allows a pedestrian to cross a natural watercourse such as a creek, a small river; or a water feature in a garden where water is allowed to flow between stone steps. Unlike bridges, stepstone crossings typically have no spans, although wood planks or stone slabs can be placed over between the stones to improvise as low-water bridges. Although their historical origin is unknown, stepping stones, along with log bridges, are likely to have been among the earliest means of crossing inland bodies of water devised by humans.
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