Meanings
nounvalley fill (uncountable)
- uncountableThe waste produced by mountain top removal mining. So named because it is typically piled high in nearby valleys.
Cite this entry
APA
valley fill. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/valley%20fill
MLA
“valley fill.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/valley%20fill. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “valley fill,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/valley%20fill.
Source: valley fill on Wiktionary, CC BY-SA 4.0.