The southern part of Lac aux Martres is served indirectly by the route 381 (north–south direction) which runs along the eastern limit of the Laurentides Wildlife Reserve.

Lac aux Martres has a relatively round peninsula with a maximum diameter of 1.5 km (0.93 mi) and with a mountain peak reaching 940 m (3,080 ft).

The toponym “Lac des Martres” is indicated in the “Dictionary of rivers and lakes of the province of Quebec”, by Eugène Rouillard, Department of Lands and Forests, 1914, page 270.

This work indicates that the land surveyor, F Vincent, in 1886, described it as being located in mountainous terrain, surrounded by fir and spruce; it also notes the presence of trout in its waters.

This name evokes the presence of the Canada marten, carnivorous mammal also called fisher, whose fur has long adorned the collars of coats.