Mount Tai Ping An Fu calligraphy stone carving is the work of which calligrapher?

There is an inscription on the back of Ping An Fu stone carving: Guan Tong.

Guan Tong is a famous writer and fu scholar. Wutai Mountain, Huangshan Mountain, Badaling Great Wall, Laoshan Mountain and many other famous mountains and rivers are engraved with his auspicious words! China wrote a blessing to the first person!