Long Range Mountains

Long Range Mountains

Geobox|Range
name=Long Range Mountains


image_size=275
image_caption=Western Brook Pond, a fjord in the Long Range Mountains.
(Gros Morne National Park, Newfoundland)
country=Canada
region=Newfoundland and Labrador| region_type=Province
unit=Appalachian Mountains
highest=The Cabox
highest_elevation=814
highest_lat_d=
highest_lat_m=
highest_lat_s=
highest_lat_NS=
highest_long_d=
highest_long_m=
highest_long_s=
highest_long_EW=


map_size=275
The Long Range Mountains are a series of mountains along the west coast of the Canadian island of Newfoundland. They also form the northernmost section of the Appalachian chain on the eastern seaboard of North America. In 2003 it was announced that the International Appalachian Trail would be extended through the Long Range Mountains.Around 1,200 million years ago, in the Precambrian era, the ancient core of what is now eastern North America collided slowly with another continent to form a vast mountain range. All that remains today are the deeply eroded granites and gneisses of the Long Range mountains.

In late Precambrian time, the supercontinent began to break apart. As it split, steep fractures formed and filled with molten rock from below. This magma cooled into the diabase dykes seen in the cliffs of Western Brook Pond and Ten Mile Pond.

By 570 million years ago the continent finally rifted apart, and the resulting basin became an ocean called the Iapetus Ocean. Some of the rocks of Gros Morne National Park were part of the continental margin on the western side of this new ocean, south of the Equator.

Running along the Gulf of St. Lawrence, the range comprises the following sections:

* Anguille Mountains,
* Lewis Hills,
* Tablelands (a section of the Earth's mantle exposed at the surface)
* main section of the Long Range Mountains (running northeast from the Tablelands through Gros Morne National Park, this is the only part of North America's east coast (south of Labrador and not including Somes Sound in Maine) that is indented by fjords)

Highest Peaks of the Long Range Mountains
RankNamemft
1The Cabox8142671
2Gros Morne8072644
3Blue Mountain8002625
4Big Level7952608
5Round Hill7632653
6Rocky Harbour Hill7562480
7Mount Saint Gregory6862251
8Gros Paté6732208
9Big Hill6592162
10Old Crow6492129

References


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