This line starts from the Great Eastern Port and uses the same track as line (a) as far as Tingyuen, the second city after crossing the Yangtze River at Nanking. From Tingyuen, its own track begins and the line proceeds in a northwesterly direction to Hwaiyuan, on the Hwai River, thence to Mongcheng, Kwoyang, and Pochow. Turning more northward, it crosses the Anhwei border into Honan, and passing through Kweiteh it crosses the Honan border into Shantung. After passing through Tsaohsien, Tingtao, and Tsaochow, it crosses the Hoangho and enters Chihli province. Passing through Kaichow it re-enters Honan to Changteh, thence it follows the Tsingchangho valley, in a northwesterly direction, across the Honan border into Shansi. Here the line enters the northeastern corner of the vast iron and coal field of Shansi. After entering Shansi, the line follows the river valley to Liaochow and Yicheng, and crosses the watershed into the Tungkwoshui Valley to Yutse and Taiyuan. From Taiyuan, it proceeds northwestward through another rich iron and coal field of Shansi to Kolan. Thence, it turns westward to Poate, where it crosses the Hoangho to Fuku, in the northeastern corner of Shensi. From Fuku, the line proceeds northward, cuts through the Great Wall into the Suiyuan District and crosses the Hoangho to Saratsi. From Saratsi, the line runs in a northwesterly direction across the vast prairie to Junction A of the Northwestern Trunk Line, where it joins the common track of the Dolon Nor-Urga line to Urga. This line runs from a thickly populated country at one end in Central China to the vast thinly populated but fertile regions of Central Mongolia, having a distance of about 1,300 miles from Tingyuen to Junction A. c. The Great Eastern Port-Uliassutai Line