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Greenbough Esker

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description Greenbough Esker Overview

The Greenbough Esker is a notable glacial ridge located in the United States, distinguished by its sinuous shape formed by sediment deposition in ancient subglacial tunnels.

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What is an esker?

An esker is a winding ridge of sand and gravel deposited by meltwater flowing through an ice tunnel beneath a glacier. The Greenbough Esker is notable for its sinuous shape.

How was the Greenbough Esker formed?

The ridge formed from sediment deposited in ancient subglacial tunnels. As the ice later disappeared, the sediment remained as a raised, winding landform.

Where is the Greenbough Esker located?

The Greenbough Esker is a notable glacial ridge in the United States. The supplied entry identifies it by its landform and formation rather than giving a more specific locality.

Why does the Greenbough Esker have a winding shape?

Its sinuous form reflects the path of meltwater channels beneath former glacial ice. Sediment accumulated along those tunnel routes and was left behind when the glacier retreated.

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