The route was developed and mapped in the years preceding the event by volunteers and staff members of the organization Bikecentennial, which changed its name to Adventure Cycling Association in 1993.
Over 4,100 cyclists rode at least part of the route during Bikecentennial, with 2,000 riding the entirety of the TransAmerica Bicycle Trail.
The route can generally be ridden between May and September and requires about two and a half months, depending on the rider’s average daily mileage.
Some stretches of the western portion of the route follow large river valleys and can be generally flat, but expect some climbing almost every day between Astoria, Oregon, and Pueblo, Colorado.
[5] The route takes riders on mostly rural, two-lane highways to avoid traffic and big cities.