Mountain State of the W U.S.: admitted 1890; 97,100 sq mi (251,489 sq km); cap. Cheyenne: abbrev. WY or Wyo
Origin of Wyomingafter Wyoming Valley
Abbr. WY or Wyo.
A state of the western United States. It was admitted as the 44th state in 1890. Acquired by the United States as part of the Louisiana Purchase (1803), Wyoming became a ranching center after the Union Pacific Railroad was established (1868). Cheyenne is the capital and the largest city.x