Denver's west-central geographic location in the Mountain Time Zone (UTC−7) also benefits the telecommunications industry by allowing communication with both North American coasts, South America, Europe, and Asia in the same business day. Denver's location on the 105th meridian at over one mile (1.6 km) in elevation also enables it to be the largest city in the U.S. to offer a "one-bounce" real-time satellite uplink to six continents in the same business day. Qwest Communications, Dish Network Corporation, Starz-Encore, DIRECTV, and Comcast are a few of the many telecommunications companies with operations in the Denver area. These and other high-tech companies had a boom in Denver in the mid to late 1990s. After a rise in unemployment in the Great Recession, Denver's unemployment rate recovered and had one of the lowest unemployment rates in the nation at 2.6% in November 2016. As of December 2016, the unemployment rate for the Denver-Aurora-Broomfield MSA is 2.6%. The Downtown region has seen increased real estate investment with the construction of several new skyscrapers from 2010 onward and major development around Denver Union Station.
Denver is in the center of the Front Range Urban Corridor, between the Rocky Mountains to the west and the High Plains to the east. Denver's topography consists of plains in the city center with hilly areas to the north, west and south. According to the United States Census Bureau the city has a total area of 155 square miles (401 km2), of which 153 square miles (396 km2) is land and 1.6 square miles (4.1 km2) (1.1%) is water. The City and County of Denver is surrounded by only three other counties: Adams County to the north and east, Arapahoe County to the south and east, and Jefferson County to the west.