Coal mining became more important to the local economy due to new techniques such as mine shafts, and Underground mine ventilation.
The allowed depth of mine shafts grew to 100 feet in 1791.
Five mines were opened in Mouzeil between 1820 and 1826, the most notable among them being the mine installed in the southeast of the commune in 1825.
A sixth mine was opened in 1838, near the village of Bourgonnière.
Six Hundred people were employed in the sector in 1850.


In 1856 due to flooding Napoleon III made a detour through Mouzeil on his way to Nantes.
The citizens of Mouzeil cheered when he passed by so the Emperor stopped and granted the requests of a widow, who petitioned him for the authorization to open an Inn.
She called it l'Auberge de Cheval blanc (lit.
Inn of the White Horse) because the Emperor had been riding a white horse that day.
Coal mining became more important to the local economy due to new techniques such as mine shafts, and Underground mine ventilation. The allowed depth of mine shafts grew to 100 feet in 1791. Five mines were opened in Mouzeil between 1820 and 1826, the most notable among them being the mine installed in the southeast of the commune in 1825. A sixth mine was opened in 1838, near the village of Bourgonnière. Six Hundred people were employed in the sector in 1850.

In 1856 due to flooding Napoleon III made a detour through Mouzeil on his way to Nantes. The citizens of Mouzeil cheered when he passed by so the Emperor stopped and granted the requests of a widow, who petitioned him for the authorization to open an Inn. She called it l'Auberge de Cheval blanc (lit.Inn of the White Horse) because the Emperor had been riding a white horse that day.
Mouzeil