平原省是一個新建的省區,位於黄河下流的兩岸,是劃出舊河南省的北部,河北省的南部和山東省的西部而建立的。它處在冀、魯、豫、晉四省之間,是四省往來的要衝。省區的形狀約略成為三角形,其四周的境界,大致是西依太行山脈,東接運河和其相連續的湖泊,遙与山東丘陵地相接,南以黃河及舊的魯豫省界為界,這些大致都有天然的界線,但是在北面則和河北省成為一連續的平原。由於這一地區位於華北大平原的中樞,在歷史上常 The Plains Province is a newly established province, located on the banks of the lower Yellow River, and is established by dividing the northern part of the Old Henan Province, the southern part of Hebei Province and the western part of Shandong Province. It is located between the four provinces of Yunnan, Shandong, Henan, and Shanxi, and it is the key point of the four provinces. The shape of the provinces and regions is roughly triangular, and its surrounding realm is roughly the Taiyi Mountains in the west, the canals and its continuous lakes in the east, and the remote hills and the Shandong Province. The south is bordered by the Yellow River and the old Luyu province. These generally have a natural boundary, but in the north, they form a continuous plain with Hebei Province. Because this area is located in the center of the Great Plains of North China, it is often found in history.