Human: Write a detailed description of a foreboding scene outside a canyon with a barge and timber. Assistant: 
The road follows the river into a canyon, which narrows to the south. The craggy, reddish-brown rock towers hundreds of feet overhead. At the southern end of the canyon, a walled town sits at the base of the peak. The clang of a bell and the distant bustle of the crowd drift along the canyon. A squat barge plies the river toward the town, its deck piled high with fresh-cut timber and dozing dwarves.