The Mont Belle Fontaine (in English: Mount beautiful fountain), culminating at 1,151 metres (3,776 ft) of altitude, is the highest summit of the Laurentides Wildlife Reserve.

The summit owes its name to Lac Belle Fontaine located to the west.

Mount Belle Fontaine is, in a straight line, 5 kilometres (3.1 mi) east of route 175 and 20 km south of L'Étape.

It is the highest point of the Jacques-Cartier Massif and the second summit of the Laurentian Mountains range, after Mount Raoul Blanchard (1,181 metres (3,875 ft)).