This chain of mountains starts at Mount Royal (which gives Montreal, Canada its name), and continues, as a series of gigantic stepping stones across the ice-age lake bed on the south shore of the St. Lawrence river. Mounts Saint-Bruno, Saint-Hilaire, Saint-Grégoire, Rougemont, Yamaska, Shefford, Orford, and Brome make up the rest of the chain. They are not extinct volcanoes, but rather hard upwellings that have resisted erosion. They form part of much longer chain of mountains created by a hotspot whose current location is under the mid-Atlantic.
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