Tuberculosis (TB) Tuberculosis (TB) Active tuberculosis (TB) is very contagious. The World Health Organization (WHO) estimates that one-third of the world's population is infected with the bacteria that cause TB.
With an average elevation of 6,800 feet, Colorado is the highest state in the United States. A mountain lake outside of the skiers dreamland of Aspen, Colorado. The US is bordered to the north by Canada and Mexico to the South. With 50 states of varied sizes, US is considered the largest nation in America.
Elevation: 13,528 feet, 4123 meters. Kings Peak is a classic Western U.S. state high point: over 13,000 feet high; not quite a climb but a rough scramble nevertheless; somewhat remote and set among beautiful backpacking country; and named after a now-obscure surveyor (Clarence King, in this case).