Map shows southern boundary of Nevada along 37th line of latitude, eastern boundary of Idaho at the 104th line of latitude; mining activity, Pony Express Express and mail routes, expenditionary routes, proposed railroad routes, areas of Indian habitation, counties, and major cities. Relief shown by hachures and spot heights. Scale [ca. 1:4,400,000].

Map shows military posts, roads and trails, settlements, and explorers' routes across western territory of the United States [consisting of modern-day] Wyoming, Colorado, and Utah. Relief shown by hachures. Scale [1:1,000,000].

Map shows mid-nineteenth century existing and proposed railroads lines, township grid, military posts, areas of Indian habitation and reservations, mines, cities, and towns. Includes geographic and historical notes. Relief shown by hachures. No scale given.

This German text recounts the author's adventures traveling the western United States over a sixteen-year period. The author describes his encounters with Native Americans and the natural environment, especially the animals he hunted. The book also includes illustrations made by the author during his travels.

Map shows mid-nineteenth century routes of exploration and navigation along the Colorado River. Relief shown by shading and hachures. Scale [ca. 1:760,320].

Map shows areas of military posts, trading posts, settlements, Native American habitation, and physical features in Nebraska Territory, Dakota Territory, Minnesota, and northern portions of Kansas. Includes notes and routes of explorers or survey parties. Relief shown by hachures and spot heights. Scale [1:1,200,000].