 Of the rest of the land, or 8.4% is settled (buildings or roads), or 2.8% is either rivers or lakes and or 0.2% is unproductive land.Of the built up area, housing and buildings made up 3.9% and transportation infrastructure made up 2.3%.Power and water infrastructure as well as other special developed areas made up 2.1% of the area Out of the forested land, all of the forested land area is covered with heavy forests.