At Christianity Today, Andy Argyrakis wrote that "The Nashville native taps into childhood trips throughout Appalachia to visit his grandparents, resulting in a laid back, roots-centered record (with an ever so slight penchant for hip-hop rhythms) that's never short on pop sensibility.

Topically, Heath blends tributes to his grandfather (a war veteran and church elder) and mentor Bob Goff (founder of social justice non-profit Restore International) with a fictional farmer, coal miner, and death row inmate—with a redemptive thread masterfully tying all of these compelling tales together.

[6] Jonathan Andre of Indie Vision Music wrote that "his bold release of a country record is an interesting move by Brandon, yet he is able to win the doubters [...] over with reflective ballads, ingenious writing and hopeful stories of the characters providing inspiration to this album called Blue Mountain.

"[7] Louder Than the Music's Jono Davies wrote that "there is a real maturity in the songwriting that flows in the creative lyrics of the songs", and the album to him was one "that [the artist] has always wanted to write" and produce.

"[3] At CCM Magazine, Grace S. Aspinwall said that "Brandon Heath has chosen much of his latest project about a fictional place called Blue Mountain, and it is his very best work to date.

[5] At Christianity Today, Argyrakis said that "multiple Dove Award winner Heath could've easily gone the safe and easy radio route, but instead turns in his most compelling album to date.

"[7] Gangl of Jesus Freak Hideout cautioned that "some members of Heath's existing fan base may be put off by Blue Mountain's less purely pop-friendly textures.

"[9] At The Phantom Tollbooth, Stephan felt that "Blue Mountain does contain some of this impressive songwriting", but "while the production on some of the songs has been reigned in [sic]", wrote that the album would be better with "less paint all over the walls".