Fort C. F. Smith
Established: 1866
Location: On Bighorn River, some ninety miles from mouth, on crossing of Bozeman Road
Named For: Charles Ferguson Smith, Major General of Volunteers
Camp Cooke
Established: 1866
Location: South bank of Missouri just west of mouth of Judith River
Named For: Brigadier General Philip St. George Cooke
Camp Reynolds / Fort Shaw
Established: 1866 (1867)
Location: On Sun River some twenty miles west of the Missouri
Named For: Colonel Robert G. Shaw
Fort Ellis
Established: 1867
Location: Three miles east of Bozeman
Named For: Colonel Augustus Van Horne Ellis
Fort Benton
Established: 1870
Location: Present town of Fort Benton
Named For: Took name of fur fort named for Senator Thomas Hart Benton of Missouri
Camp Baker / Fort Logan
Established: 1869 (1877)
Location: 18 miles northeast of Diamond City, 15 miles west of White Sulphur Springs
Named For: Major E. M. Baker of Fort Ellis; Fort Logan for Captain William Logan, killed in Battle of the Big Hole
Camp (Cantonment) Porter
Established: 1873
Location: 3 miles above the mouth of Glendive Creek along the banks of the Yellowstone River
Fort Missoula
Established: 1877
Location: Five miles south of Missoula
Named For: Took name of town
Fort Keogh
Established: 1877
Location: On Yellowstone at mouth of Tongue River
Named For: Captain Myles W. Keogh, 7th Cavalry, killed on Bighorn with Custer
Fort Custer
Established: 1877
Location: At junction of Little Bighorn with the Bighorn
Named For: Major General George A. Custer
Helena Barracks
Established: 1877
Location: On Helena Fair Grounds about 3 miles outside city
Named For: Took name from town
Fort Assiniboine
Established: 1879
Location: Six miles south of Havre
Named For: Took name of Indians
Camp Loder
Established: 1879
Location: On Lodge Pole Creek near Fort Musselshell
Camp Poplar River
Established: 1880
Location: 2 miles north of the Missouri, on site of the present day town of Poplar
Named For: Took name of river
Camp Porter
Established: 1880
Location: Established on Yellowstone River near Glendive Creek, on site of the present day town of Glendive
Fort Maginnis
Established: 1880
Location: Judith Basin some twenty miles northeast of Lewistown
Named For: Montana Representative to Congress, Martin Maginnis
Camp Crook
Established: 1890
Location: Near what is now the Northern Cheyenne Indian Reservation (old Tongue River Indian Agency)
Camp Merritt
Established: 1890
Location: On Lame Deer Creek, near present town of Lame Deer in Rosebud County and what is now the Northern Cheyenne Indian Reservation (old Tongue River Indian Agency)
Fort William Henry Harrison
Established: 1892
Location: Five miles northwest of Helena
Named For: President William Henry Harrison; First named Fort Harrison for President Benjamin Harrison; name changed in 1906