According to the U.S. Census Bureau, the county has a total area of 685 square miles (1,770 km2), of which 681 square miles (1,760 km2) is land and 3.8 square miles (9.8 km2) (0.6%) is water. It is the fourth-largest county in Tennessee by area. The county is located atop the Cumberland Plateau.
Revenue passenger kilometres (RPK) is a measure of the volume of passengers carried by an airline. A revenue passenger-kilometre is flown when a revenue passenger is carried one kilometre. A passenger for whose transportation an air carrier receives commercial remuneration is called a revenue passenger.
RPS is an emerging developer, manufacturer, and marketer of rapid point-of-care diagnostic tests for infectious diseases, inflammatory conditions, and bio-terrorism and chemical nerve agent blood toxins. Click on your geographic location to view RPS information and products specific to your region.PS is an emerging developer, manufacturer, and marketer of rapid point-of-care diagnostic tests for infectious diseases, inflammatory conditions, and bio-terrorism and chemical nerve agent blood toxins. Click on your geographic location to view RPS information and products specific to your region.