Military map of Nebraska and Dakota - Public domain map

Covers North Dakota, South Dakota, Nebraska, and portions of Minnesota, Iowa, and Kansas.
Shows routes of 20 exploration or survey parties.
Relief shown by hachures and spot heights.
At the head of title: "Explorations & Surveys, War Dept. Hon John B. Floyd. Secy. of War."
In upper left margin: "35th Congress, 1st Session, printed by order of the U.S. Senate."
Includes notes.
LC copy has fold-lined.
Available also through the Library of Congress Web site as a raster image.