 VANCOUVER, BC, Oct. 4, 2021 PRNewswire - First Mining Gold Corp. First Mining or the Company TSX: FF OTCQX: FFMGF FRANKFURT: FMG is pleased to announce that the Company has entered into an earn-in agreement with Pelangio Exploration Inc. Pelangio pursuant to which First Mining, through its wholly-owned subsidiary Gold Canyon Resources Inc. Gold Canyon, may earn, over the course of two stages and over a period of six years, up to an 80 interest in Pelangios Birch Lake and Birch Lake West properties together, the Birch Lake Properties. The Birch Lake Properties include the High Grade Island prospect, which is located to the northeast of First Minings Springpole Gold Project in northwestern Ontario. 