description Eastern River Esker Overview
The Eastern River Esker is a named glaciofluvial ridge in Maine, United States, formed from sand and gravel carried by meltwater during the retreat of the Laurentide Ice Sheet. Its sinuous form records the course of a water channel that flowed in or beneath the former ice, rather than a normal river valley cut directly into bedrock. The feature is therefore relevant to interpreting the late-Quaternary glacial history and meltwater drainage of Maine.
help Eastern River Esker FAQ
Where is the Eastern River Esker located?
The Eastern River Esker is a named glaciofluvial ridge in Maine, United States. It formed in the landscape left behind by the Laurentide Ice Sheet.
What does glaciofluvial mean in the case of Eastern River Esker?
Glaciofluvial means the ridge was built by meltwater flowing from or beneath glacial ice. That water carried and sorted sand and gravel into a long deposit.
What does the sinuous shape of Eastern River Esker show?
Its winding form records the course of a former meltwater channel. The channel existed during the retreat of the Laurentide Ice Sheet.
Is Eastern River Esker made of solid bedrock?
No. It is primarily an unconsolidated ridge of sand and gravel, not a bedrock spine. Its materials were transported and deposited by glacial meltwater.
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