Chicago's Hunters have been roaming the stoner-sludge terrain since 2011, combining hazy psychedelic drift with the kind of low-end punishment the Windy City's heavy underground specializes in. Thick, slow, and suffocating in the best sense.

Salt Lake City's Hyde Park blend stoner, sludge, and doom into something ponderous and psychedelic since 2021, the high-altitude desert setting lending their sound an arid, expansive quality. Fuzz-drenched and unhurried.

Fresno's Hymns to the Stone move at the pace of sediment, layering stoner fuzz, sludge grime, and doom weight into slow-burning rituals of sound. Since 2014, they've treated heaviness as a meditative practice rather than a competition.

Named for one of World War II's most brutal and forgotten campaigns, Fort Worth's Hürtgen Forest channel that same grinding attrition through sludge-drenched doom metal. Since 2016, they've built a sound as punishing and relentless as the battlefield that inspired them.

A Seattle institution in the sludge underground since 2007, Iamthethorn buries listeners under slow-motion avalanches of distortion — the sound of the Pacific Northwest's grey skies transmuted into heavy, corrosive weight.

Minneapolis black/sludge metal duo formed in 2022, marrying the frozen misanthropy of black metal to the tar-thick heaviness of sludge in a way that suits the long, lightless winters of the upper Midwest.

New York black/sludge outfit operating in the space between blackened tremolo ferocity and the slow, grinding weight of sludge — an uneasy tension that gives their sound a lurching, unpredictable menace.

Oklahoma City's atmospheric sludge/funeral doom practitioners have been building slow, suffocating cathedrals of sound since 2014 — oppressively heavy, devastatingly patient, and steeped in the flatland desolation of the Great Plains.

Portland's Illryth plays sludge metal with the suffocating weight you'd expect from the Pacific Northwest — slow-crawling heaviness dragged through feedback and filth.

Hudson Valley newcomers Implode arrived in 2024 dragging sludge metal's slow, crushing weight through the post-industrial quiet of Wappingers Falls, building dense, suffocating walls of noise with methodical intent.

York, Pennsylvania's Jade Mountain arrived in 2022 bearing a dense, suffocating sound that merges blackened atmospherics with the crushing low-end of sludge and the despairing weight of doom — bleak, patient, and unrelenting.

Minneapolis outfit JHVA formed in 2024 and immediately staked out a dense intersection of industrial, sludge, and death metal — mechanized, abrasive, and heavy enough to feel like the Twin Cities' coldest February manifested as sound.

Missoula, Montana's Jolly Jane collide sludge metal's swampy downtuned drag with the loose, aggressive energy of crossover thrash — a scrappy, unpredictable combination that feels born from the Big Sky State's geographic isolation and do-it-yourself ethos.

Athens, Georgia duo Jucifer are notorious for hauling one of the largest live speaker walls in underground metal and deploying it to devastating effect, channeling sludge, doom, drone, and punk into a wall-of-sound assault that defies easy categorization. Active since 2006, they remain one of the most extreme live acts in American heavy music.

From the small rural community of Bevent, Wisconsin, Karma Bloody Karma work the intersection of sludge, doom, and post-metal — music that sounds as weathered and vast as the Wisconsin interior since their 2023 formation. Heavy, slow, and emotionally unsparing.