| Petite rivière à Monfette | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Quebec |
| Subdivision Type3: | Region |
| Subdivision Name3: | Centre-du-Québec |
| Subdivision Type4: | Regional County Municipality |
| Subdivision Name4: | Arthabaska Regional County Municipality |
| Length: | 7.9km (04.9miles) |
| Source1: | Mountain streams |
| Source1 Location: | Saint-Rémi-de-Tingwick |
| Source1 Coordinates: | 45.8535°N -71.8573°W |
| Source1 Elevation: | 338m (1,109feet) |
| Mouth: | Nicolet Southwest River |
| Mouth Location: | Saint-Rémi-de-Tingwick |
| Mouth Coordinates: | 45.8039°N -71.8875°W |
| Mouth Elevation: | 163m (535feet) |
| Progression: | Nicolet Southwest River, Nicolet River, St. Lawrence River |
| Tributaries Left: | (upstream) |
| Tributaries Right: | (upstream) |
The Petite rivière à Monfette (in English: Little river at Monfette) is a tributary on the north bank of the Nicolet Southwest River (Les Trois Lacs (Les Sources). It flows into the municipality of Saint-Rémi-de-Tingwick, in the Arthabaska Regional County Municipality (MRC), in the administrative region of Centre-du-Québec, in Quebec, in Canada.
The "Petite rivière à Monfette" has its source at the confluence of two streams on the southern flank of the mount "La Montagne" in Saint-Rémi-de-Tingwick. This spring is located southwest of the center of the village of Saint-Rémi-de-Tingwick and northwest of the hamlet of Coin-de-la-Petite-Mine.
From its source, the Petite rivière à Monfette descends on generally towards the south, with a drop of . From its source, the course of the river descends the mountain towards the south to the confluence (altitude: 260 m) of a stream (coming from the northeast, or from the hamlet of Coin-de-la-Petite-Mine), then continue down the mountain to the north shore of the lake Les Trois Lacs (Les Sources), either in the hamlet of La Petite-Venise and opposite the hamlet of Le Cap-de-Roche (located on the south shore of the lake).
The Les Trois Lacs (Les Sources) is crossed to the west by the Nicolet Southwest River.[1]
The term "Monfette" turns out to be a family name of French origin.
The toponym "Petite rivière à Monfette" was made official on September 5, 1985, at the Commission de toponymie du Québec.[2]