| Aubinadong River | |
| Map: | Aubinadong watershed.png |
| Map Size: | 250px |
| Pushpin Map: | Ontario |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Districts |
| Subdivision Name3: | Sudbury, Algoma |
| Discharge1 Location: | Above Sesabic Creek |
| Source1 Location: | Whitehead Township |
| Mouth: | Mississagi River |
| Mouth Coordinates: | 46.8569°N -83.3642°W |
| Tributaries Right: | Little Aubinadong River, West Aubinadong River |
The Aubinadong River is a river in Sudbury and Algoma Districts, Ontario, Canada. It is a right tributary of the Mississagi River.
The river springs in Whitehead Township, a geographic township in the northwestern part of Sudbury District. It flows in a mostly southerly direction through a variety of landscapes with high, rugged rock cliffs in the north, and flatter, lower lying areas in the south. It has generally wide, deep, slow-moving stretches interspersed by narrow channels of whitewater. Its dark water has a considerable amount of humic acid.
The river forms part of a traditional indigenous canoe route, linking the interior with Lake Huron via the Mississagi River. It is still used for canoe camping as the main recreational activity. Starting at Five Mile Lake Provincial Park, the canoe route is about long, requiring 5 days.
About half the length of the Aubinadong River, from the Sudbury-Algoma District boundary to its mouth, is protected within the Aubinadong River Provincial Park, while a portion of the West Aubinadong River is protected in the Aubinadong-Nushatogaini Rivers Provincial Park. The river's water sources are protected within the Algoma Headwaters Provincial Park.[1]
Over the period 1980 to 2022, the Aubinadong River has an average mean flow of 17.6m3/s. Mean minimal flow is 3.91m3/s and mean maximum flow is 49.8m3/s. Record maximum flow was 119m3/s in May 1996, while record minimum flow was 1.43m3/s in August 2012.
Among the fish species present in the river are brook trout, pike, and walleye.
The Aubinadong River Provincial Park protects a 50km (30miles) long section, or about half the length of the entire Aubinadong River. As a waterway park, it includes the river and a 200m (700feet) strip of land along both banks. It borders on the Mississagi River Provincial Park to the south.
Notable features of the park are its wild nature that provide habitats to a wide variety of amphibian, reptile, and bird species (including hawks, kingfishers, ravens, swallows, and possibly peregrine falcons). The river's riparian habitats are regionally significant. There are also some stands of old-growth white pine (Pinus strobus) along the river.
Aubinadong River Provincial Park is a non-operating park. There are no services or facilities. Permitted activities include canoeing, fishing, and hunting.