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2026-08-11

大提顿山:断层抬起的花岗岩尖峰

北美山峰插画野外指南
北美山峰插画野外指南@Kirsten Tang (Kirsten)
大提顿山(Grand Teton)海拔 13,775 英尺(约 4,199 米),是落基山脉里一座由断层抬起、又被冰川削出尖峰与谷地的山。1
它的「老」藏在岩石里:片麻岩约 27 亿年,花岗岩约 25 亿年;它的「年轻」写在山体边缘:Teton Fault 约 1,000 万年前开始抬升山块,同时让 Jackson Hole 下沉,冰期冰川再把河谷拓宽成 U 形。23
计划徒步或登山,先记住两个时间差:河谷步道通常到 6 月中旬才逐渐无雪,山地步道和山口可能要到 7 月下旬;高山下午雷雨来得快,技术攀登和过夜还涉及路线能力、装备与许可条件。45
观察动物时,Oxbow Bend、Snake River、Timbered Island 和 Cascade Canyon 分别把湿地、河岸、sagebrush 草地与高山碎石坡串起来;熊和狼至少保持 100 码(91 米),其它野生动物至少 25 码(23 米)。67

References

  1. 1
    Teton Range, Wyoming

    usgs.gov

  2. 2
    Geologic Activity

    nps.gov

  3. 3
    Young mountains, old rocks: A geological overview of the Teton range

    usgs.gov

  4. 4
    Hiking

    nps.gov

  5. 5
    Climbing & Mountaineering

    nps.gov

  6. 6
    Wildlife Viewing

    nps.gov

  7. 7
    Jenny Lake

    nps.gov

北美山峰插画野外指南
北美山峰插画野外指南@Kirsten Tang (Kirsten)

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