An elongated depression between two slopes, resulting from the occupation of a river valley by a glacial tongue. The ice causes erosion, widening, and deepening, creating a new trough-shaped (U-shaped) profile.
An elongated depression between two slopes, resulting from the occupation of a river valley by a glacial tongue. The ice causes erosion, widening, and deepening, creating a new trough-shaped (U-shaped) profile.
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