A new EP featuring four previously unreleased tracks via Reprise Records. Three of the tracks, "North Side Star," "Blue Walsh," and "Cold Dark Place," were recorded during the sessions for Mastodon's 2014 album Once More ound The Sunand were produced by Nick Raskulinecz. A fourth track, "Toe to Toes," was recorded during the sessions for the band's most recent album, 2016's Emperor of Sand, and was produced by Brendan O'Brien.