California-based Mossen have been practicing uncompromising raw black metal since 2017, stripping the genre down to its most confrontational and lo-fi extremes with a cold, primordial approach that owes little to modern production trends.

From the rural western Massachusetts town of Cummington, Mosslung fuse funeral doom's paralyzing slowness with black metal's icy atmosphere and ambient drone, creating music as desolate and overgrown as the New England woods surrounding them.

Brand new in 2025, Eureka, Missouri's Mosterhaven practice raw atmospheric black metal with folk underpinnings, their debut effort immediately pointing toward windswept, nature-worshipping extremity with an unpolished, DIY conviction.

Chicago black metal project Motion Failure emerged in 2020 from the city's dense and varied extreme metal underground, channeling urban unease and industrial desolation into uncompromising, cold black metal. The project captures the isolation of city life through a distinctly bleak, confrontational lens.

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.

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.

Bucks County, Pennsylvania's Mountain Shadow are a newly formed (2024) project spanning an unusually wide stylistic range — atmospheric black metal, folk metal, death metal, doom, and death-doom — suggesting a band intent on using the full palette of extreme metal rather than settling into a single lane. The project's scope and ambition make it one of the more intriguing recent arrivals in the Pennsylvania underground.

Tennessee-based Mourn work in the most isolationist and despairing territory of depressive black metal, crafting slow, suffocating music that prioritizes emotional annihilation over technical display. Active since 2015, the project is a severe and uncompromising voice from the American South's extreme metal underground.