muleteer:
(plural: ‘muleteers‘; pronunciation: the letters ‘mu’ rhyme with the letters ‘mu’ in “music” — for the right pronunciation of this word, please click here)
a person who drives (mules) and works using mules;
(in the present day illegal drug business) a person, usually a young and stylish-looking man, who traps young girls visiting pubs and clubs to use them as carriers of illicit drugs out of airports, especially in the UK,
Mountaineers often hire muleteers to carry their equipment.
Even in this age of machines, there are still some muleteers working hard with their mules in some remote mountainous areas, carrying tourists, scientists and researchers and their equipment and supplies into the remote mountainous parts of the world where motor vehicles can’t be used.
A gang of ‘muleteers’ who was trying to recruit young girls to smuggle cocaine out of the country was nabbed by the police in a sting operation!

