The loess plateau is reduced to an undulating surface as it reaches its final stage of erosion (top picture), where it appears that the gully floor is terraced. Extensive terracing is applied to the slopes of these mounds shown on the bottom picture.

进入 黄土高原, 赫然入目的 是 金色的 黄土.

图片资料: 黄河水利委员会 编:《黄河风》, 黄河水利出版社, 1996.