Nebraska is a state on the Great Plains of the Midwestern United States. The state is crossed by many historic trails, but it was the California Gold Rush that first brought large numbers here. There are wide variations between winter and summer temperatures, and violent thunderstorms and tornadoes are common. The state is usually characterized by treeless prairie, ideal for cattle-grazing, and it is a major producer of beef, as well as pork, corn, and soybeans. Needless to say, that Nebraska is overwhelmingly rural. Tourism industry is not well developed, however some spa oriented resorts can be found in countryside.