What was Tai 'an called in ancient times?

Tai 'an was called Taishan County, Gao Feng, Ganfeng and Xiangfu in ancient times.

Tai 'an, a prefecture-level city in Shandong Province, is located in the middle of Shandong Province, bordering Jinan, the provincial capital in the north, Qufu in the south, Linyi in the east and the Yellow River in the west, with a total area of 7,762 square kilometers. It is located 66.8 kilometers north of Jinan, the provincial capital.

Taian is located in a part of the central mountainous area of Shandong Province. The whole terrain inclines from northeast to southwest. There are many types of landforms in the territory, including mountains, hills, plains, depressions and lakes. The mountainous areas are concentrated in the north and east of the city, with an area of 140700 hectares, accounting for 18.3% of the total land area of the city. Generally, the altitude is between 400-800 meters. The hills are mainly distributed in the southwest of xintai city, the east of Ningyang County, the northwest of suburbs, the edge of Feicheng Basin and the north of Dongping County, covering an area of 3 1.64 million hectares, accounting for 4 1. 1% of the city's total land area, and the elevation is generally between 1.20-400 meters. The plains are mainly distributed in foothills and rivers, mostly valley plains and piedmont alluvial plains, covering an area of 277,600 hectares, accounting for 36. 1% of the city's land area, with an altitude of 60-120m.