Monteregian Mountain Chain

They are named for Mount Royal ( Latin , ''Mons Regius''), their best-known (but not tallest) member. Other mountains in the chain include Mont Saint-Bruno , Mont Saint-Hilaire , Mont Saint-Grégoire , Mont Rougemont , Mont Yamaska , Mont Shefford , Mont Orford , and Mont Brome . Some geologists believe that Mont Mégantic is also a member of this group.

Each mountain in the chain consists of Igneous Rock and associated Hornfels , which are more resistant to Weathering than the surrounding Sedimentary rock. All of the mountains have dark-colored Mafic rock such as Gabbro and Essexite ; some also have large areas of Pulaskite , Syenite , and other light-colored rock.

The shallow, rocky soils of the summits are mostly covered in Forest . Lower slopes are covered with aprons of gravel or sand (which often has a subsoil hardpan). The free-draining gravels are preferred for Apple orchards, which grow in thermal belts where cold air can drain to the valley floor.

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Monteregian Mountain Chain