A large isolated rock or boulder on a hillside, especially one left behind by a glacier.
From French 'roche' meaning rock, ultimately from Latin 'rocca.' Used in geology to describe glacially-deposited boulders. The term is most commonly found in British geographical contexts describing landscape features.
A roche is basically a giant rock that got dropped off by a retreating glacier—nature's boulder delivery system! Geologists love this word because it describes something very specific: a lone rock too big to have gotten there naturally, left behind as the Ice Age glaciers melted. You'll find roches scattered across Scotland, Scandinavia, and Canada like geological breadcrumbs marking where ice once traveled.
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