Correspondence, reports, circulars, securities, and other miscellaneous materials related to the Burlington and Missouri River Railroad-Iowa (B&MRR-Iowa), incorporated in 1852 and leased to the Chicago, Burlington & Quincy Railroad Company (CB&Q) in 1872. Includes materials related to incorporation, operation, branches to Chariton and Creston, and consolidation with CB&Q. Forms part of the Chicago, Burlington & Quincy Railroad Company Records.

Printed maps, manuscript maps, technical blueprints, and drawings produced by the CB&Q and its affiliated lines. Forms part of the Chicago, Burlington & Quincy Railroad Company Records.