Los Angeles heavy metal and hard rock supergroup Motor Sister draw together seasoned players from the New York and LA metal scenes to deliver unapologetically loud, riff-driven rock that worships at the altar of Motorhead and classic NWOBHM. Since forming in 2015 they have been a love letter to the era when heavy metal and hard rock were indistinguishable.

Loveland, Colorado's Mount Cairn channel the raw, unpolished fury of the Rocky Mountain landscape into punishing raw black metal, eschewing production polish in favor of harsh, primitive recordings that feel genuinely inhospitable. Active since 2013, they represent the underground's most uncompromising strain in a state with a strong tradition of extreme metal.

Birmingham's Mountain Bastard drag blackened doom metal through the mud and misery of the Deep South, merging the freeze of second-wave black metal with the lumbering hopelessness of funeral doom in a sound that is as much a product of Alabama's heavy music legacy as it is of Scandinavia's. Formed in 2017, they are one of the more severe acts in the regional 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.

Philadelphia stoner/doom band Mountain High embrace the fuzzed-out, slow-burning side of heavy music, delivering riff-heavy material that prizes groove and heft over velocity. Formed in 2013, they are part of a deep-rooted Philly heavy tradition that has long favored the low and slow.

New Jersey stoner/doom outfit Mountain Kings have been generating dense, slow-rolling heaviness since 2014, applying the Garden State's hard-rock heritage to a sound rooted in fuzz-pedal worship and glacial tempos. Their music is built for volume and patience in roughly equal measure.

Milwaukee's Mountain Language occupy a noisy intersection of black metal, sludge, and raw noise, building hostile, suffocating soundscapes that draw as much from harsh noise aesthetics as from metal tradition. Formed in 2014, they are one of the more confrontational and genre-defiant acts in the Wisconsin metal underground.

Gulfport, Mississippi doom/sludge outfit Mountain of Beard have been hauling Gulf Coast heaviness into their music since 2012, layering suffocating low-end sludge with the oppressive humidity of the Deep South. Their name leans into the genre's irreverence while the music leans toward punishment.

Sci-fi doom trio built around a pedal steel guitar run through heavy effects. Albums are thematically rooted in Blade Runner, with songs named after characters from the film.