A long,narrow,sinuous ridge of stratified sand and gravel located in a till plain is known as a(n)

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A long, narrow, sinuous ridge of stratified sand and gravel located in a till plain is known as an esker. Drumlins are elongated hills formed by glacial ice, kames are small hills or mounds of sand and gravel deposited by a melting ice sheet, and kettles are depressions in the ground formed by the melting of buried blocks of ice. A till plain is an extensive, nearly flat deposit of glacial drift.

A Long,narrow,sinuous Ridge of Stratified Sand and Gravel Located in a Till