overlander

noun2

1. •
   One who travels overland.

   • Sarah was a nurse from Devon and an “overlander”, one of our group of 20 travelling across Zimbabwe, Botswana and Namibia in a Mercedes-Benz truck. — 1995
2. •
   (Australia) A drover who herds large groups of sheep or cattle over long distances.

   • The overlanders are, nearly all, men in the prime of youth, whose occupation it is to convey large herds of stock from market to market, and from colony to colony. — 1862