Abstract: A detachable dumping apparatus comprises a frame including a pair of spaced-apart elongate rails. A rearwardly disposed hitch is attached to the frame and adjustably attachable to the rear bumper of the pickup truck. A plurality of adjustable biasable stabilizer legs are attached to the frame for exerting an outwardly biasing force against each side of the bed of the pickup truck. A bucket having a substantially trapezoidal cross-section is pivotally connected to the frame. At least one arm having first and second ends, wherein the first end is slidably attached to one of the rails and the second end is attached to the bucket. A cable is connected to the first end of the arm for sliding the arm along one of the rails to cause the bucket to pivot with respect to the frame and a winch is operatively connected to the cable.