Military Division of the Trans-Rocky Mountains

The Military Division of the Trans-Rocky Mountains is a command echelon of the United States Army. It was formed in 1861 and disbanded in 1872 with the conclusion of the Black Hawk War.

Commanders

American Civil War

Sidney Stone (1861–1863)

Christopher Carter (1863)

William Holmes (1863–1864)

Owen Houghton (1864–1865)

Ethan H. Sawyer (1865)

War of Western Secession

Ethan H. Sawyer (1865–1869)

Black Hawk War

Ethan H. Sawyer (1865–1869)

Tommy Saxon (1870–1872)

Units

Civil War

• Military District of Oregon
  • Seattle Garrison Force
• Military District of California
  • Army of the Sacramento
  • Army of the Redwood
  • Army of Los Angeles (1861-1863)
  • Army of San Diego (1861-1864)
• Military District of Utah
  • Utah Territorial Army
  • Army of Deseret (1861-1862)
  • Army of Utah (1862-1864)
  • Army of the San Juan
  • Army of the Great Salt Lake
  • Army of the Creeks
• Military District of the Southwest
  • Arizona Territorial Army
  • New Mexico Territorial Army
  • Army of Arizona
    • New Mexico Division
• Military District of Colorado
  • Colorado Territorial Army
  • Army of Denver

Black Hawk War

• Military Department of the West
  • Utah Territorial Army
    • Army of the Salt Lake
    • Army of the San Juan
  • Arizona Territorial Army
    • Arizona Ranger Regiment
  • Colorado Territorial Army
    • 13th Colorado Militia Cavalry Regiment
    • 17th Colorado Militia Cavalry Regiment
  • New Mexico Territorial Army
    • 1st New Mexican Militia Cavalry Regiment