[2] Northumberland County is covered by thick forests, whose products stimulate the economy.

The highest peaks in the province, including Mount Carleton lie in the northwestern corner of the county.

The county is dominated by the Miramichi River, world famous for its salmon fishing.

The lower portion of the river is an estuary that widens into Miramichi Bay, a part of the Gulf of St. Lawrence.

The city of Miramichi is a local service centre for the county and surrounding regions with schools, hospitals and government offices and retail locations.