highwall

American

[hahy-wawl] / ˈhaɪˌwɔl /

noun

the unexcavated face of exposed overburden and coal in a surface mine.

Etymology

Origin of highwall

Example Sentences

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highwall

Tilcon manager Bill Conklin said they spotted the dog near the top of what he referred to as a highwall, which dropped 45 feet to the rocky edge of a sump pit where groundwater accumulates.

From Washington Times ● Aug. 27, 2016

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023