overland mail
Americannoun
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a government mail service, started in 1848, for sending mail from the Mississippi to the Far West.
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(initial capital letters) a stagecoach line, established in 1858, linking Memphis, St. Louis, and San Francisco, which was then paid by the government to carry U.S. mail to the Far West. With various changes in ownership, name, and routes it continued until the completion of the transcontinental railroad in 1869.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
