The Rock Island Line bought the M&M on July 9, 1866, and completed its line to Council Bluffs in 1869 and extended the Muscatine/Washington Line to Leavenworth, Kansas.
The Rock Island Line acquired the M&M in 1866 and subsequently developed its route to Council Bluffs by 1869 and expanded the Muscatine/Washington Line to Leavenworth, Kansas.