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May 1992: US 6/US 60
US 6 west from Cleveland to Bishop, California, then US 60 east from Los Angeles 
to Richmond, VA and US 1 from northern Maryland to New York City.
   May 2: Home-Mentor, OHMay 3: Mentor-Morris, ILMay 4: Morris-Council Bluffs, IAMay 5: Council Bluffs-Sterling, COMay 6: Sterling-Grand Junction, COMay 7: Grand Junction-Nephi, UTMay 8: Nephi-Palmdale, CAMay 9: Palmdale-Phoenix, AZMay 10: Phoenix-Socorro, NMMay 11: Socorro-Amarillo, TXMay 12: Amarillo-Joplin, MOMay 13: Joplin-Evansville, INMay 14: Evansville-Dunbar, WVMay 15: Dunbar-Richmond, VAMay 16: Richmond-Havre de Grace, MDMay 17: Havre de Grace-home
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