Running along the Gulf of St. Lawrence, the range is comprised of the following sections:
Anguille Mountains,
Lewis Hills,
Tablelands (including some of the oldest exposed rock on the planet)
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 that is indented by fjords)
The highest peaks are as follows:
Lewis Hills (48° 50'N, 58° 29'W, highest point on the island of Newfoundland), 814 metres
In addition to the true folded mountains, known as the ridge and valley province, the area of dissected plateau Blue Mountain (Pennsylvania) to the north and west of the mountains is usually grouped with them.
In the folded mountains the coal is in metamorphosed form as anthracite represented by the Coal Region of northeastern Pennsylvania and discovered by Necho Allen.
The confinement of the colonies between an ocean and a mountain wall led to the fullest occupation of the coastal border of the continent, which was possible under existing conditions of agriculture, conducing to a community of purpose, a political and commercial solidarity, which would not otherwise have been developed.