Yutok Bridge (g.yu thog zam pa) gets its name from the turquoise-colored tiles of its roof (yutok means "turquoise roof"). The stone bridge formerly crossed a wet marsh area between the old town of Lhasa and the Potala Palace and made travel between the two areas easier, especially in the summer months. Though Larson and Sinding-Larson state that it is thought by some that parts of the bridge date from the seventh century, the twentieth-century historian Tsepon W. D. Shakapa attributes the building of the Yutok Bridge to a representative of the Qing government stationed in Lhasa (these representatives were known as Amban). The bridge was completely reconstructed in 1993 and now houses a restaurant.