Pack train

Shortly after six, our pack train arrived. […] We had nineteen serving men and twenty-six pack mules! It was a perfect caravan.

Here they met a pack-train of burros that came down the mountain trail.

In Italy's rugged mountains, mules and horses can go where a jeep can not go. […] Each pack train has its own veterinarian to give first aid.

Muybridge […] would travel through the Western landscape with as many as four assistants and a pack train to carry his glass negatives and chemical preparations and cameras.