The Northwoods are the boreal forest of North America, covering about half of Canada and parts of Minnesota, Wisconsin, Michigan, New York, Vermont, New Hampshire and Maine.
This massive softwood forest is spread over the entire North American continent and makes up the major portion of both trees and volume.
Because of the forest's great size, and because of differing climate and soils, North America is favored by a rich variety of these "evergreens".
A combination of temperature, rainfall, and topography creates conditions favorable for growing the largest living organisms - the inland sequoias and the coast redwoods .
This Northern forest region spreads across four thousand miles, from Alaska to Newfoundland and down the higher peaks of the Appalachian mountains.
The Central forest region touches 30 states from Cape Cod to the Rio Grande and back up to Canada.
The Southern forest occupies the coastal plains of the Atlantic from Virginia through the Gulf States and into Texas and Missouri.