This Ohio band operate in the dirty crossover territory between sludge metal and crust punk, piling on thick, down-tuned riffs with the filthy, grinding ethos of the crust underground.

Phoenix doom/sludge outfit Mosara channel the oppressive desert heat into slow, grinding heaviness — formed in 2019, they pair massive distorted riffs with a suffocating patience well-suited to the Arizona landscape.

Philadelphia's Mose Giganticus have been in continuous mutation since 2006, beginning in synth-punk and industrial metal before shifting toward a heavier progressive sludge sound — a band that has always valued sonic restlessness over genre consistency.

North Babylon, Long Island sludge/stoner duo Moth Eater launched in 2023 with a thick, fuzz-drenched sound that punches above its two-piece configuration — heavy, hypnotic, and rooted in the grimy New York underground.

Salem, Massachusetts stoner/sludge act Mother Iron Horse bring a fittingly gothic-coastal weight to their sound — formed in 2018 in one of America's most historically charged cities, they deal in slow, smoldering heaviness with an unmistakable New England edge.

Boston sludge metal institution Motherboar have been a persistent presence in the New England underground since 2011, built on crusty, feedback-laced heaviness and the kind of colossal bottom-end that makes floors shake at small venues.

Chicago's Motherless are a brand new entity formed in 2025, working in experimental doom/sludge territory that pushes against genre convention — early activity suggests an interest in texture and dissonance over conventional song structure.

Charleston, South Carolina's Mothmother smash sludge metal and grindcore into a volatile collision of punishment and noise, channeling the coastal South's heat and humidity into bursts of chaotic, caustic heaviness. Active since 2017, they are one of the more abrasive and uncompromising acts to emerge from the Lowcountry underground.

Brooklyn doom and sludge metal outfit Mountain God have been hauling monumental, slow-moving riff structures through New York City's underground since 2013, bringing an almost devotional weight to music that feels both ancient and urban. Their sound sits at the slow, heavy end of the New York metal spectrum, indebted equally to Cathedral and Eyehategod.