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 - 2

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Map, Territory of the United...
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Map, Territory of the United States from the Mississippi River to the Pacific Ocean …, 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 Pacific Ocean. This map, published with their report, incorporated information from many previous expeditions. To aid Congress in selecting a route, it indicated locations of settlements, American Indian nations, and military posts.

Geography and Map Division, Library of Congress

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