The North Eaton River flows through the municipalities of La Patrie, Newport and Cookshire-Eaton, in the Le Haut-Saint-François Regional County Municipality (MRC), in the administrative region of Estrie, in Quebec, in Canada.

The neighboring hydrographic slopes of the North Eaton River are: The North Eaton River originates in the municipality of La Patrie, on the southern slope of Mount West Ditton (summit at 542 metres (1,778 ft)).

This spring is located southwest of the village La Patrie, south of the hamlet of West Ditton, west of the rivière au Saumon (Le Haut-Saint-François).

From its source, the "North Eaton River" generally flows northwest over 37.5 kilometres (23.3 mi) in the following segments: The North Eaton River drains on the east bank of the Eaton River at 1.2 kilometres (0.75 mi) downstream from the Lakes Mill Bridge and at 1.4 kilometres (0.87 mi) upstream from the bridge from route 212.

The toponym "Rivière Eaton Nord" was made official on December 5, 1968, at the Commission de toponymie du Québec.