Mount Union

Short definition from Wiktionary

Proper noun

1. 1
   A mountain in the Bradshaw Mountains, Yavapai County, Arizona, United States.
2. 2
   An unincorporated community and census-designated place in Henry County, Iowa, United States.
3. 3
   A borough in Huntingdon County, Pennsylvania, United States.
4. 4
   An unincorporated community in Botetourt County, Virginia, United States.