Boulder
Boulder noun - A large smooth mass of rock detached from its place of origin.
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Shelf and Boulder. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/boulder/shelf
Boulder & Shelf. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/boulder/shelf>.
Shelf or Boulder. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/boulder/shelf.
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