The surroundings of Lac Franquelin are served by a few forest roads which indirectly connect south to the route 138.

[2] The surface of Lake Franquelin is usually frozen from the beginning of December to the end of March; however, traffic on the ice is generally safe from mid-December to mid-March.

The main bays are: Fosse Lachance, Lise, Castor, Philippe, Wood, Guides, Bernard, Jumelles and Saint-Pierre.

This lake turns out to be the main body of water at the head of the Franquelin River side.

[4][3] The toponym "Lac Franquelin" was formalized on December 5, 1968, at the Place Names Bank of the Commission de toponymie du Québec.