One of the more singular acts in American heavy music, Eagle Twin emerged from Salt Lake City in 2009 to build an uncompromising wall of drone-heavy sludge doom, where riffs don't so much crush as they slowly collapse under their own gravity.

A sludge metal project born in Richmond, Virginia in 2023, Earth Burial joins one of the East Coast's most consistently fertile heavy underground cities with a sound built from layers of slow, oppressive riffing.

A New York outfit formed in 2023 that drags sludge's tar-thick riffing into the grinding momentum of thrash, built on punishing tempos and walls of distortion that rarely relent.

Out of Tempe, Arizona since 2021, Earthwalker layers the crushing weight of sludge over doom's slow funeral crawl, conjuring something heavy enough to sink into the desert floor.

One of Portland, Maine's longer-running heavy acts, Eastern Spell has been casting their particular brand of sludge-doom since 2013 — dense, slow-burning songs where the misery accumulates like snowpack.

Chicago's Edgar Allan Ectoplasm have one of heavy music's better names, and they back it up with a lurching, fog-thick blend of doom, stoner, and sludge metal that evokes humid dread — active since 2013.

Champaign, Illinois is not a city anyone expects to produce sludge, but Edna — with that deceptively unassuming name — has been dragging down midwestern tempos with thick, fuzz-drenched stoner weight since 2017.

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Active off and on since 1999. One of Austin's earlier sludge/stoner acts, predating much of the city's current heavy scene.

Austin's Egypt trades in sludge and stoner metal with a Texas-sized thickness, formed in 2009 in a city whose creative underground has always made room for bands willing to slow down and get filthy.

Portland's Eight Bells weave progressive, doom, and sludge into something genuinely graceful — feminine vocals over cavernous weight, a combination that has made them one of the more distinctive acts in the Pacific Northwest's metal underground since 2013.

Ventura, California's El Barbaro occupies the brutal intersection of doom, sludge, and hardcore, a combination the band has been weaponizing since 2012. Crushing tempos and hardcore aggression collide with the genre's suffocating low-end weight.

Lancaster County, Pennsylvania's Electric Horsemen have been plowing through doom and sludge since 2006, their sound built on crushing, slow-motion riffs and the kind of rural grimness that comes from years in the underground.

Portland's Elitist refuse to stay in one lane — their sound drags sludge's suffocating weight through grindcore velocity and crust punk fury, occasionally dropping into straight death metal savagery without warning.

Denver's Elk Hunter arrived in 2025 dragging metalcore's angular energy through sludge's mire, the band's mile-high origin reflected in a suffocating, high-altitude heaviness.