The U.S. transcontinental telegraph line linked the Atlantic and Pacific coasts
by connecting the "Eastern connection" at Omaha, Nebraska
with the "Western connection" at Carson City, Nevada.
From: The New Naval and Military Map of the United States,
by J. Calvin Smith, J. M. Atwood, map engraver, Philadelphia, Pa. 1862.
"Entered according to Act of Congress in the year 1862 by Robert P. Smith." Library of Congress Geography and Map Division, Washington, D.C.