Located about east of Hinton, the Obed Mountain Mine was a thermal coal mine with the capacity to produce about 3.2 million tonnes of coal per year;[REF] 2.6 million tonnes are proven to exist, and up to 84.7 million more tonnes were posited [REF].
On October31, 2013, one of the mine's pits failed, and from between 600 million to a billion liters of slurry poured into the Plante and Apetowun Creeks [REF].