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黄河流经山、陕交界处,为秦晋两省天然分界线。由府谷至禹门口全程552公里,该段属山区性河流,河道切割于黄土高原之中,平均比降0.8‰～0.9‰,水急浪大,沿程有八条主要支流,携带大量泥沙汇入黄河。禹门口至潼关,河道长126公里,此段黄河出龙门后,河面骤然扩宽到5～10公里,比降减小到0.3‰左右,水流分散而平缓,大量泥沙沉积,主槽不明,河道游荡不定。该段有汾河、渭河等较大支流汇入,口门处及沿程各段浅滩、分汊鳞次栉比,航行条件十分恶劣。
The Yellow River flows through the mountains and the junction of Shaanxi Province as the natural dividing line between the Qin and Jin provinces. From Fugu to Yumenkou full 552 kilometers, this section is a mountainous river, the river cut in the Loess Plateau, the average drop of 0.8 ‰ ~ 0.9 ‰, water jumped waves, there are eight major tributaries along the way, carrying a large amount of sediment Import into the Yellow River. Yumenkou to Tongguan, the river 126 km long, this section of the Yellow River after the gantry, the river suddenly widened to 5 to 10 km, down to about 0.3 ‰, the water scattered and gentle, a large sediment deposition, the main groove is unknown, Loose river. The section of Fenhe, Weihe and other large tributaries of the import, entrance and along the sections of the shoals, row upon row of rows, navigation conditions are very poor.