The Interstate Highway standards for the U.S. Interstate Highway System uses a 12-foot (3.7 m) standard for lane width, while narrower lanes are used on lower classification roads. In Europe, as laws and road width vary by country, the minimum widths of lanes is generally between 2.5 to 3.25 metres (8.2 to 10.7 ft).
Weather | Natural Extremes | Air Quality | Environmental Watch | Zip Codes | Government. Las Vegas is located in south Nevada. Las Vegas is part of Clark County. Las Vegas has 135.81 square miles of land area and 0.05 square miles of water area.
For the landform, see Las Vegas Valley (landform). For other uses, see Las Vegas (disambiguation). The Las Vegas Valley is a major metropolitan area located in the southern part of the U.S. state of Nevada. The largest urban agglomeration in the state, it is the heart of the Las VegasâParadise-Henderson, NV MSA. The Valley is largely defined by the Las Vegas Valley landform, a 600 sq mi (1,600 km2) basin area surrounded by mountains to the north, south, east and west of the metropolitan area. The Valley is home to the three largest incorporated cities in Nevada: Las Vegas, Henderson and North Las Vegas.