弓河源头是落基山上的弓冰川(Bow Glacier) 融化而成的冰岛湖(Iceberg Lake) ，而后从悬崖峭壁上飞流之下形成弓川瀑布(Bow Glacier Falls) ，再汇入弓湖(Bow Lake)，最终形...
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弓湖所处的山谷是由超过1万年的冰川雕刻而成。
The valley where Bow Lake sits was carved by glaciers more than 10, 000 years ago.
除了被迷你汪卡湖占据的弓河谷外，冰川作用的证据还可以在南部的圆形冰斗处找到。
Besides the Bow Valley, evidence of glaciation also appears in this image south of the lake, in the amphitheater-shaped cirque.
从2万5千年前开始，弓河谷冰川穿过了整个峡谷，之后被大陆冰川所取代。
Beginning 25,000 years ago, the Bow Valley glacier ground through the region before being overtaken by a continental glacier.
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