Maine's all-time lowest officially verified temperature of −50 °F (−46 °C) was recorded at a weather station along the Big Black River on January 16, 2009. The previous record was −48 °F (−44 °C), set at Van Buren, on January 19, 1925.
From its source, the "Big Black River" flows on 77.9 kilometres (48.4 mi) of which 32.9 kilometres (20.4 mi) in Quebec and 45.0 kilometres (28.0 mi) in Maine, according to the following segments:
Upper course of the Big Black River (segment of 12.2 kilometres (7.6 mi) in Quebec)
1.5 kilometres (0.93 mi) to the Southeast, up to the bridge of the road of "rang Simple" (Single Range) which runs in parallel to the Canada-US border;
2.5 kilometres (1.6 mi) to the Southeast, up to the Canada-US border.
Lower course of the Great Black River (segment of 45.0 kilometres (28.0 mi) to Maine downstream of the Canada-US border)
From the Canada-US border, the "Big Black River" flows entirely in forest and mountainous areas of:
4.0 kilometres (2.5 mi) to the East in the Township T14 R16 WELS of the Aroostook County, collecting the waters of Good brook, up to the bridge of forest road;
5.8 kilometres (3.6 mi) to the Southeast, winding at the end of the segment, up to the river Depot Steam (from the South);
9.1 kilometres (5.7 mi) to the Southeast, up to a stream (from the South);
6.1 kilometres (3.8 mi) to North, up to the confluence of the "Fivemile Brook" (from the Northwest) in the T15 R14 WELS;
4.7 kilometres (2.9 mi) Southward, up to Twomile Brook (from the North);
2.7 kilometres (1.7 mi) to the Southeast, up to the confluence of the river.[1]
Big Black River empties into a river bend on the West bank of the Saint John River (Bay of Fundy) in the Township T15 R13 WELS. This confluence is located:
17.1 kilometres (10.6 mi) to the Southeast of the Canada-US border (Quebec-Maine) up to Saint-Omer, Quebec;
50.6 kilometres (31.4 mi) Southwest of the Canada-US border (New Brunswick-Maine) to Saint Francis, Maine.
From the confluence of the "Big Black River", the Saint John River (Bay of Fundy) flows to the East and Northeast through the Maine, then East and Southeast crossing the New Brunswick. Finally, the current empties on the North bank of the Bay of Fundy which opens to the Southwest on the Atlantic Ocean.
The toponym『Grande rivière Noire』(Big Black River) was officialized as of December 5, 1968, at Commission de toponymie du Québec (Quebec Place Names Board).[2]