St. Louis's Druid, active since 2018, works the territory between doom metal's funeral weight and sludge metal's abrasive, downtuned grit. Their music reflects the Midwestern heavy underground's tendency toward bleakness — dense, slow-moving, and uninterested in accessibility for its own sake.

Bangor's Druid, formed in 2018, brings together sludge metal's lumbering heaviness and hardcore's confrontational urgency into a sound that reflects Maine's isolation and its small but fierce heavy underground. The hardcore influence keeps the material raw and direct even when the tempos drag and the riffs pile up.

Santa Cruz, California's Dvvell emerged in 2022 with a sound rooted in the heaviest end of sludge and doom — plodding tempos, down-tuned guitar tone, and a suffocating atmosphere that rewards patience from the listener.

A recently formed Oakland, California band, Dwel draws equally from sludge, doom, and post-metal's expansive sonic vocabulary, building dense, slow-burning compositions that owe as much to atmosphere as they do to raw heaviness.

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.