Meanings
proper noun
- An unusual rock formation of columnar basalt near Mammoth Mountain in Eastern California, United States, the site of a national monument.
Origin
The monument was established in 1911 as "Devil Postpile National Monument" (no possessive) but is widely referred to as "Devils Postpile National Monument", and has been officially styled as plural without the apostrophe since the 1930s. An alternate historic name was Devil's Woodpile.
Full word history & related roots →Cite this entry
APA
Devils Postpile. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Devils%20Postpile
MLA
“Devils Postpile.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Devils%20Postpile. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “Devils Postpile,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Devils%20Postpile.
Source: Devils Postpile on Wiktionary, CC BY-SA 4.0.