Aspens are trees of the willow family and comprise a section of the poplar genus, Populus sect. Populus.

The city has its roots in the winter of 1879, when a group of miners ignored pleas by Frederick Pitkin, governor of Colorado, to return across the Continental Divide due to an uprising of the Ute Indians. Originally named Ute City, the small community was renamed Aspen in 1880 and quickly surpassed Leadville as the nation’s most productive mining district for silver. While the price of silver steadily declined during the silver boom in Colorado, production expanded due to the passage of the Sherman Silver Purchase Act of 1890, which doubled the government’s purchase of silver. By 1893, Aspen’s prosperity resulted in a population of 12,000 residents, with banks, a hospital, two theaters, an opera house and electric lights. Economic collapse came with the Panic of 1893, when President Cleveland called a special session of Congress and repealed the act. Within weeks, many of the Aspen mines were closed and thousands of miners were put out of work. It was proposed that silver be recognized as legal tender and the Populist Party adopted that as one of its main issues; Davis H. Waite, an Aspen newspaperman and agitator was elected governor of Colorado on the Democratic Ticket; but in time the movement failed.