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It is named after a small ravine found in the centre of the territory (coulée is an archaic French word meaning "small canal" or "channel"). The ravine is formed by the Adolphe Creek, a tributary of the Little Cap-Chat River, that was named in honour of Adolphe Gagnon or one of the sons of this former inhabitant. The creek is only 2.5 kilometres (1.6 mi) long and drops from an elevation of 250 metres (820 ft) off the Appalachian plateau to less than 100 metres (330 ft).
Demographics
Historical Census Data - Coulée-des-Adolphe, Quebec