The more than 74,000 maps in the U.S. Congressional Serial Set range from the great atlases to small individual maps clarifying very specific land questions, to the great triangulation surveys, to the repetitive but for the meteorologist important weekly weather maps, to the maps that made history as well as the maps of past history. Maps found in the Serial Set covers years of publication: 1817-1994.
U.S. Serial Set Maps (via Readex) - Map images, records, and indexing for maps published in Reports and Documents of the 15th Congress, 1st Session through the 103rd Congress, 2nd session.
Example:
Map of the Missouri River in the vicinity of Vermillion D.T. To accompany report of S.H. Yonge, Asst. Engr. to Maj. Chas. R. Suter, Corps of Engineers, U.S.A. Dated June 30, 1879.
