… discovered in two Manitoba First Nations. According to a CAF … observed in Black River First Nation on Saturday. CTV News … UXO found in Black River First Nation. (Source: Kenny Harry) … Black River First Nation and another in Fort Alexander First Nation. CAF …… discovered in two Manitoba First Nations. According to a CAF … observed in Black River First Nation on Saturday. CTV News … UXO found in Black River First Nation. (Source: Kenny Harry) … Black River First Nation and another in Fort Alexander First Nation. CAF …