《史记·三十世家·梁孝王世家》
其封地北以泰山为界，西达高阳，共有四十余城，多数是大县。
地北界泰山，西至高阳，四十馀城，皆多大县。
His fiefdom was bounded by Mount Tai in the north and reached Gaoyang in the west, with more than 40 cities, most of which were counties.
<s>[INST] Explain the meaning of this Classical Chinese passage in English: 地北界泰山，西至高阳，四十馀城，皆多大县。 [/INST] His fiefdom was bounded by Mount Tai in the north and reached Gaoyang in the west, with more than 40 cities, most of which were counties.</s>
Explain the meaning of this Classical Chinese passage in English: 地北界泰山，西至高阳，四十馀城，皆多大县。
user
His fiefdom was bounded by Mount Tai in the north and reached Gaoyang in the west, with more than 40 cities, most of which were counties.
assistant