Baton Rouge, Louisiana sludge and Southern metal band formed in 2018, channeling the suffocating heaviness of the Gulf Coast underground through down-tuned riffs and a thick, swampy production aesthetic native to the region.

Visalia, California doom and sludge metal band formed in 2009, crafting slow, oppressive music that blends the tar-thick weight of sludge with traditional doom metal melancholy, rooted in California's fertile underground heavy scene.

Flagstaff, Arizona band formed in 2013 that fuses black metal, sludge, crust punk, and hardcore into a raw, confrontational sound that reflects the chaotic energy of the desert Southwest's DIY underground.

Oklahoma City sludge metal band formed in 2015, building massive walls of down-tuned, feedback-heavy sound in the tradition of the American Southern sludge underground.

Tulsa, Oklahoma sludge and doom metal band formed in 2013, heaving through slow, punishing riffs that reflect the heavy, earthbound sound of the American South's underground sludge tradition.

Massachusetts stoner, sludge, and doom metal band formed in 2021, combining fuzz-heavy psychedelic riffing with the slow, oppressive weight of doom and sludge metal across a densely layered sonic palette.

Philadelphia, Pennsylvania sludge metal and hardcore band formed in 2011, channeling the dense, riff-heavy aggression of sludge alongside the blunt intensity of East Coast hardcore into a punishing and emotionally raw sound.

Baltimore, Maryland sludge, thrash, and hardcore outfit formed in 2001, known for dense, churning arrangements that blend the caustic brutality of sludge metal with thrash-derived aggression and hardcore intensity, placing them among the most distinctive acts in the mid-Atlantic underground.

Swarmcatcher is a doom and sludge metal band from Grafton, Massachusetts, formed in 2022, dealing in slow, crushing riffs and oppressive heaviness rooted in the New England underground.

Salt Lake City's Swarmer blends post-metal, sludge, and stoner metal into expansive, riff-heavy soundscapes, drawing on the high desert's isolation for their dense, layered approach since forming in 2018.

Los Angeles-based Swartwoud has operated since 2013 at the intersection of black metal, sludge, and crust punk, with an ambient undercurrent running through their abrasive, lo-fi recordings.

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Cleveland, Ohio's Sweaty Mammoth have played stoner and sludge metal since 2015, delivering fuzz-heavy riffs and lumbering grooves grounded in the Midwest's blue-collar heaviness.

Switchback is a sludge and stoner metal band from Hyrum, Utah, active since 2013, delivering slow, heavy riffs shaped by the isolation of Cache Valley's rural landscape.

Crushing Sludge / Stoner Metal / Rock from Corpus Christi.