[Release Date: August 28, 2026] Equal parts crushing and cathartic, Marrow Deep finds Grammy winners Mastodon pushing their sound into new depths without sacrificing what makes them one of heavy music’s most forward-thinking forces. Mastodon channel profound grief into one of the most emotionally charged albums of their storied career. A 12-song testament of the effect those close to us can have on our lives - effects that can extend well beyond the time we have with them. An album ultimately representing resilience and solidarity.