The route had become steeper, and they were all huffing now.

However, the route up to the pass had become narrowed and dangerous due to rockfall.

"This route may well become some day a considerable trade artery," Gwynn predicted.

Researchers believe the routes, methods and activities of trafficking are becoming increasingly more organized.

The routes become intertwined once more, running concurrent with one another into Connecticut.

By 1549, this route had become known as The Kings Way.

The 1846 treaties established new desirable stable western territories just after viable routes west had become well published.

Detroit became the northern end of the eastern division, with the old route to Indianapolis becoming a connecting link.

By the 1950s the route had become known as the Mays Road service.

The old route became part of a new rail freight bypass opened in 1909.