Bras de l'Enfer is a stream located in the Charlevoix Regional County Municipality of Quebec, Canada, within the northern reaches of the Laurentides Wildlife Reserve. This remote waterway serves as both a primary inflow and outflow for Lac de l'Enfer, connecting to the broader Rivière à Mars watershed, which ultimately drains into the Saguenay River. Situated at an elevation of approximately 853 metres (2,799 feet), the stream flows through a rugged, largely undeveloped landscape of boreal forest typical of the Laurentian Highlands. Access to the area is primarily via forest road R0287, which runs along the Rivière du Moulin and connects to Route 175 — the main highway linking Quebec City to Saguenay. The surrounding terrain is characterized by the dense coniferous forests and rocky topography of the Canadian Shield, creating the kind of cold, clear, oxygen-rich water that defines classic Quebec brook trout habitat.