Map of the northern portion of the United States west to Nebraska, Kansas and an enlarged Minnesota. Of interest are the railroad routes shown both completed, under construction, and contemplated; among the latter the Northern Cross R.R., the Chicago St. Charles & Mississippi Air Line R.R., the Mississippi & Missouri R.R. terminating at Council Bluffs, etc. OCLC/WorldCat lists only one copy of the map, at the University of Chicago