There are at least 2 bands named Mass Grave: 1). Mass Grave is a Canadian anarchist crust punk band formed in 2002 in Vancouver, Canada. Following legendary predecessors like Disrupt, as well as Doom and Warcollapse, Massgrave is a strong advocate of world peace, being anti-war, pro-marijuana, pro-animal liberation, and anti-class oppression. Massgrave's roots began to grow after the break up of Goat and Woody's crust band Trench Rats in 2001. They began to jam and write songs for a band that wouldn't even play a show for nearly one and a half years.