Historical
Overview
In 1860, most Americans considered the Great Plains the “Great American Desert.” Settlement west of Minnesota, Iowa, Missouri, Arkansas, and Lousiana averaged just 1 person per square mile. The only parts of the Far West that were highly settled were California and Texas. By 1893, the Census Bureau was able to claim that the entire western frontier was now occupied. The discovery of gold, silver, and other precious minerals in California in 1849, in Nevada and Colorado in the 1850s, in Idaho and Montana in 1860s, and South Dakota in the 1870s sparked an influx of prospectors and miners. The expansion of railroads and the invention of barbed wire and improvements in windmills and pumps attracted ranchers and farmers to the Great Plains in the 1860s and 1870s.
The 250,000 Native Americans who lived on the Great Plains were confined onto reservations through renegotiation of treaties and 30 years of war. Most of the 85,000 Mexican Americans who lived in the Southwest following the Mexican War lost their land and were forced to support themselves in such transient occupations as railroad construction and farm labor.