How do kame terraces form between a glacier and a valley wall?

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esker: Nunavut — glacial landform Eskers, or narrow ridges of gravel and sand left by a retreating glacier, wind through western Nunavut, Canada, near the Thelon River.

A kame terrace is a landform created when meltwater streams deposit stratified drift—typically sand and gravel—in the space between the lateral margin of a glacier and the adjacent valley wall.123

These features form as part of a process involving stagnant ice deposits. As meltwater flows along the edge of the glacier, it carries and deposits sediment in the confined area between the ice mass and the valley side. When the glacier eventually melts away, the support for these sediments is removed, causing the stratified drift to slump and partially collapse, which leaves behind a terrace-like landform along the valley wall.12