Mauricie–Bois-Francs was a former administrative region of Quebec. It ceased to exist on July 30, 1997 (or August 20, 1997, upon publication in the Gazette officielle du Québec) when it was split into the modern-day administrative regions of Mauricie and Centre-du-Québec.
It consisted of the following regional county municipalities:
which became part of Mauricie, and:
which became part of Centre-du-Québec.
References
Mauricie–Bois-Francs Wikipedia(Text) CC BY-SA