ナショナルジオグラフィックのインスタグラム(natgeo) - 3月12日 13時13分

25,000-10,000 years ago, glaciers carved through these mountains sculpting steep canyons and leaving behind terminal moraines like this one at Phelps Lake in Grand Teton National Park. These piles of glacial debris have helped to form a series of lakes at the base of the Tetons supporting rich wildlife habitat and endless recreation opportunities.
Learn more about this ecosystem in the May 2016 issue of National Geographic Magazine.
photo by @drewtrush

@grandtetonnps

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