Philadelphia stoner/doom outfit Mothman and the Thunderbirds mine American cryptid mythology for atmosphere, wrapping their heavy riffs in an occult Appalachian mystique that feels right at home in the city's heavy music scene. Formed in 2020, the band traffics in slow, smoky heaviness with a taste for the strange.

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.

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.

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.

Annapolis, Maryland's Mountainwolf have been threading doom metal and classic hard rock together since 2012, occupying a sound that is too heavy for rock radio and too song-oriented for pure doom orthodoxy. Their Chesapeake Bay roots give their music an unexpectedly coastal character for a genre that tends toward the continental and landlocked.

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.

Los Angeles doom and sludge metal act Mourn (not to be confused with the Tennessee project sharing the name) drag their heaviness through a thick layer of Southern California nihilism, building slow, corrosive compositions rooted in the sludge tradition. Formed in 2015, they add another bleak and unrelenting entry to LA's well-populated heavy underground.

Connecticut's Mourn the Light blend traditional heavy metal muscle with the slow, suffocating weight of doom, channeling classic influences into a sound that is both punishing and melodically rich.

Nashville's Mourner occupy the heaviest intersection of sludge, drone, and doom, dragging listeners through suffocating low-end frequencies and near-static tempos that feel built from the weight of the Tennessee hills.

Santa Rosa, California's Mournful Cries marry the crushing tempos of doom with the melodic vocabulary of traditional heavy metal, crafting songs that carry a brooding emotional weight alongside genuine riff craftsmanship.

Salt Lake City's Mournful Incarnation specialize in funeral doom of the bleakest kind — cavernous, nearly motionless compositions that stretch grief into something vast and suffocating, born from the silence of the Utah desert.