 When included with the Sydney and Inverness coal fields on Cape Breton Island, these regions were extremely prominent in the industrial and social development of Nova Scotia.In addition to sharing the Carboniferous Lowlands, the southern portion of the peninsula is dominated by the Atlantic Interior (Sissiboo Lowlands, South Mountain, various slate ridges), followed by the comparatively small Triassic Lowlands (the Annapolis Valley), and the Fundy Coast (including Economy Mountain and North Mountain) and Atlantic Coast regions.The Atlantic Interior is dominated by a glacial landscape of exposed granitic rock, thick forest, drumlins and numerous lakes.