A list of a country's natural resources is posted on the World Factbook of the Central Intelligence Agency. The list includes mineral deposits, petroleum, hydroelectric power and other sources of economic gain.
Natural resources pertain to the useful materials derived from the Earth that have undergone various geological processes. Humans generally make use of these resources to generate energy and manufacture a range of products to sustain daily life.
In the United States, coal is one of the country's primary natural resources, constituting approximately 27 percent of global reserves. Other resources include timber, petroleum, natural gas and minerals, such as gold, copper, silver, zinc, iron, mercury, rare earth elements, phosphates, uranium, tungsten, nickel, potash, bauxite, lead and molybdenum.