Mammoth Grinder has been played on NTS shows including Night Shift w/ Diamondstein, with Mysticism first played on 3 December 2019.

Mammoth Grinder is a metal band from Austin, Texas. They formed in the year 2005. The band had current and former members of Power Trip, Iron Reagan, and Darkest Hour. In the early days of the band, they had a hardcore punk / sludge metal sound. As time went by, they went on to become a death metal / hardcore band. They describe their sound as a "primitive brand of punk-inflected death metal." They typically write songs about genocide and death.

They disbanded in 2014, but came back in 2017. Since 2019, their status is unknown. Their last known lineup consisted of Chris Ulsh (vocals, bass), Mark Bronzino (guitars) and Ryan Parrish (drums). Relapse Records was the last label they were signed to.

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