Abstract: This invention relates to a trailer for transporting solid, loose materials. The trailer features an elongated frame which is attached to a towing vehicle and which carries a bin for containing the solid material. A discharge means is associated with the bin to effect discharge of the material therefrom. The material is conveyed after discharged by a conveying means along a path which extends from the discharge means, over at least a portion of the towing vehicle, and to a dumping point forward of the towing vehicle. This path lies substantially in the vertical plane of the long axis of the trailer.