大雪山山脈位於川西高原中部,中國四川省甘孜藏族自治州境內,余脈向南延伸到涼山彝族自治州。山脈向南呈南北走向,是雅礱江與大渡河的分水嶺。南北延伸400多千米,主要為砂岩、花崗岩,5000米以上高峰眾多,主峰貢嘎山海拔7508.9米,冰川密布。山體西坡較緩,東坡較陡,西部比東部高,氣候寒冷。有牧業分布,亦為四川省重要林區,並出產鐵、銅、雲母、石棉等礦產。山脈西部多為藏族分布,東部為漢族和藏族雜居區。318國道由折多山穿越大雪山,山口海拔4290米。[1]
參考資料
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