After reaching Fort Rice in central Dakota Territory, from September 10–30, 1864 four companies were sent 200 miles west to help rescue Fisk's immigrant train at Fort Dilts approximately 13 miles east of the Montana Territory border. At this time, the regiment was transferred to the 23rd Corps, then in the Department of the Cumberland at Nashville, Tennessee.
After reaching Fort Rice in central Dakota Territory from September 10–30, 1864, four companies were sent 200 miles west to assist in rescuing Fisk's immigrant train at Fort Dilts, located approximately 13 miles east of the Montana Territory border. Subsequently, the regiment was transferred to the 23rd Corps stationed in the Department of the Cumberland at Nashville, Tennessee.