100 years ago in the summer of 1919 an Army expedition of 81 vehicles set out to cross the United States from Washington, DC to San Francisco, California.
The Transcontinental Motor Convoy departs Camp Meigs in Washington, DC on July 7, 1919.
The convoy passes through East Palestine, Ohio.
Encamped at East Palestine, Ohio, near the Firestone Homestead.
Local citizens help drive soldiers to the Firestone Homestead.
Harvey Firestone greets convoy commander Col. McClure.
Soldiers of the convoy enjoy a meal at the Firestone Homestead.
Soldiers are dismissed from the mess hall.
Headed down the Lincoln Highway.
Extracting trucks from the mud in Nebraska.
Crossing the Continental Divide in Wyoming.
Driving through alkalai dust in Wyoming.
A truck breaks through a wooden bridge and is extracted with an artillery tractor.
Pushing a truck out of a ditch.
Passing through the Great Salt Lake Desert, Utah.
A meal is prepared in the trailmobile kitchen.
Pulling trucks through wet sand in Nevada.
The convoy heads through the Sierra Nevada mountains.
The convoy passes through Sacramento, California.
View of the San Francisco Ferry Building as the convoy heads on ferries from Oakland to San Francisco.
The convoy passes San Francisco's Civic Auditorium Building.
The convoy arrives at the Presidio in San Francisco on Sept. 6, 1919, completing its trip after 62 days and 3,251 miles.