The R1027 bridge spans the Gouault River about 11 kilometres (6.8 mi) south of its confluence with Matagami Lake.

From the bridge, this road runs along the west bank of the Gouault River and the Matagami Lake; then it goes further north to reach the territories east of James Bay.

The MacIvor designation, provided by the geologist Jérôme H. Rémick, evokes the life of a trapper who frequent this region.

It is not unreasonable to believe that this hydronym evokes the Jesuit and apothecary brother Gaspard Gouault, who practiced his profession in New France in the 17th century.

[3] The toponym "Gouault river" was formalized on December 5, 1968, at the Commission de toponymie du Québec.