They went in on foot using mules to carry supplies.

The aid workers are talking about using mules to ferry aid to thousands of victims.

People still preferred to use mules instead of this car.

Jake jumped out of the private car and crouched down, using the horses and mules for cover.

By September, 1831, the railroad was operational, using horses, mules and gravity as motive power.

They used mules to carry their equipment as far as the snow-line.

Prospectors began using the area in the 1890s, using mules to haul their ore.

They don't use mules for nothing but glue no more.

The people of the village still largely work on the land, often using mules.

How they'd humped all the ammo into position Adams wasn't sure, but they'd probably used mules.