五尺道是中國古代修築的一條連接中原、四川與雲南的通道。一般認為是戰國末期或秦代開鑿，一種說法是：秦國蜀郡郡守李冰採用積薪燒岩的原始辦法，開山鑿岩，開通了此條道路。因路寬五尺，所以稱為「五尺道」。漢武帝時，又派唐蒙對五尺道加以整修擴建，一直修到滇池。
參考
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