United States: IV. Central [from Mississippi River to Rocky Mountains]

Map shows cities, counties, and railroads for states along and east of the Rocky Mountains and west of the Mississippi River. Includes "Index to the sectional maps of the United States" on verso. Relief shown by hachures and spot heights. Scale [1:4,870,000].
Date: [1902..1922]
Creator: London Geographical Institute
System: The Portal to Texas History

Colorado.

Map shows railroads, Native American reservations, cities, towns, post offices, and notable physical features. Relief shown by hachures. Scale [ca. 1:3,379,000] and [ca. 1:4,771,000].
Date: [1900..1920]
Creator: C.S. Hammond & Company
System: The Portal to Texas History