IV is the fourth studio album by Canadian rock band, Black Mountain, released on April 1, 2016. The five-and-a-half year gap between two studio albums is the longest to date. It is also the band's first album of new work since their 2012 soundtrack album for Year Zero.
^"IV - Black Mountain" (Print). No. March 2016. Time Inc. UK. March 24, 2016. p. 69. Stephen McBean's merry bunch have toned down the heavier impulses of 2010's Wilderness Heart on this fourth album, plumping instead for a collision of gruff psychedelia, trippy space-folk and pulsing electronica.