Source: Aguasabon River

Long Lake is a narrow body of water approximately 80km long with outlets at the north (Kenogami Dam) and south (Long Lake Control Dam) ends.  The town of Longlac and the Indigenous communities of Ginoogaming and Long Lake 58 are at the north end of Long Lake.  Historically, the lake flowed from south to north passing through the Kenogami and Albany Rivers before flowing into James Bay.  However in 1939 the Longlac Diversion was constructed which reversed the flow of water redirecting the water flow through a series of engineered channels into the Aguasabon River and then into Lake Superior at the Town of Terrace Bay.  During wet times on Long Lake the Kenogami Dam is opened to release additional water out of Long Lake and into the Kenogami River.

The Long Lake Control Dam began operating in 1939 and located 30 km upstream of Aguasabon Generating Station. The dam is located at the south end of Long Lake and controls the flow of water south through the Aguasabon River. The dam has two sluices and each sluice has nine stoplogs.

The Kenogami Control Dam was constructed in 1938 as part of the Long Lac Diversion project which diverted water into Long Lake that historically flowed into the Kenogami River and then into the Albany River before entering James Bay. The Dam is located north of the town of Longlac.  The Kenogami Dam consists of six sluices and each sluice has eleven stoplogs.

Aguasabon Generating Station is located on the Aguasabon River system on the north shore of Lake Superior. This peaking station went into service in 1948 and has two units with a maximum generating capacity of 47 MW.

The intake for this facility is located on Hays Lake, approximately four km west of the Hays Lake Control Dam.