<Ul> <Li> Lowest point: Death Valley, Inyo County, California − 280 ft (− 85.3 m) </Li> <Li> Highest point: Denali, Denali Borough, Alaska 20,310 ft (6,190.5 m) </Li> </Ul> <Li> Lowest point: Death Valley, Inyo County, California − 280 ft (− 85.3 m) </Li> <Li> Highest point: Denali, Denali Borough, Alaska 20,310 ft (6,190.5 m) </Li> <P> Due to its large size and wide range of geographic features, the United States contains examples of nearly every global climate . The climate is subtropical in the Southern United States, tropical in Hawaii and southern Florida, polar in Alaska, semiarid in the Great Plains west of the 100th meridian, Mediterranean in coastal California and arid in the Great Basin and the Southwest . Its comparatively favorable agricultural climate contributed (in part) to the country's rise as a world power, with infrequent severe drought in the major agricultural regions, a general lack of widespread flooding, and a mainly temperate climate that receives adequate precipitation . </P>

How many miles is it across the united states from east to west