 Of the rest of the land, or 23.0% is settled (buildings or roads), or 1.8% is either rivers or lakes and or 1.8% is unproductive land.Of the built up area, housing and buildings made up 15.5% and transportation infrastructure made up 6.2%.Out of the forested land, 8.0% of the total land area is heavily forested and 1.8% is covered with orchards or small clusters of trees.