Due to a special event, on Wednesday, July 8, there will be no tours of the U.S. Capitol after 11 a.m. Emancipation Hall and Exhibition Hall in the Capitol Visitor Center will be unavailable all day. While reservations prior to 11 a.m. will be honored, same-day passes will not be available. The Capitol Visitor Center will close at noon except for individuals on official business and those going to the House and Senate Galleries.

Exhibit Theme

A Railroad to the Pacific - 1

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Map, Exploration of a Railroad...
Image Caption

Map, Exploration of a Railroad Route, 1854-1857, compiled by G.K. Warren et al., 1858

With appropriations from Congress, Secretary of War Jefferson Davis commissioned the Army Corps of Engineers to explore four routes from the Mississippi River to the PacificCoast. This map, issued with their published report, combines information from many previous expeditions and indicates the locations of American Indian nations and military posts.


Geography and Map Division, Library of Congress