[5] In an interview with Digital Journal, bassist Brad Walst said "The Mountain" was originally written in September 2016 and about overcoming the daily difficulties in life.
[6] Three Days Grace's drummer Neil Sanderson similarly told iHeartRadio that the song was about dealing with repetitive events that you have to complete and left without a choice.
[7] While talking with Detroit radio station WRIF, lead singer Matt Walst said he sang his highest ever during his musical career on "The Mountain".
On the song's final chorus, Walst believed his voice reached a high D.[8] "The Mountain" was released as the first single off Outsider on January 25, 2018 with an accompanying music video.
[9] Markos Papadatos of Digital Journal said "The Mountain" had "infectious riffs and strong hooks" alongside relevant and hopeful lyrics.