Car owners used the Official Automobile Blue Book road atlases to explore the Northern Plains and surrounding areas in the early 1900s. #ArchivesYouAreHere

The atlases contained information on routes, hotels, gas stations, car repair shops, road conditions (including which roads to avoid when it is muddy and which roads had sharp turns). The ads in the book are beautiful and informative about car culture.

Volume Ten is in the Archives and Special Collections.

Library of Congress sponsors #ArchivesHashtagParty once a month, and March’s topic is #ArchivesYouAreHere. LOC invites groups to share their maps, astrolabes, star charts, tidal maps, compasses, globes, visitor guides, treasure maps, city plans, or even architectural drawings.