Hells Canyon
geographical name
canyon of the Snake River on the Idaho–Oregon border
Note: Hells Canyon is the deepest canyon in the U.S.
Cite this Entry
“Hells Canyon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Hells%20Canyon. Accessed 3 Nov. 2025.
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Merriam-Webster unabridged
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