Grinding Progressive Sludge Metal from Denton.

Philadelphia's sludge metal outfit Monolith have been delivering slow, crushing heaviness since 1993, drawing on the city's dense underground to produce music steeped in grit and abrasive, downtuned power.

A long-running post-metal and sludge outfit from Cortland, New York, Monolith have been building slow, crushing soundscapes since 1993, channeling the weight of upstate isolation into feedback-drenched, deliberate riffs.

Detroit's Monolithic Architecture arrived in 2024 with a sludge and doom sound befitting their industrial hometown — slow, corrosive riffs built like crumbling infrastructure, heavy with grime and deliberate intention.

Oakland's Monster God have been churning out doom and sludge metal since 2017, harnessing the Bay Area's legacy of slow, heavy punishment — massive riffs dragged through distortion and misery in equal measure.

Austin doom trio influenced by Neurosis, the Melvins, and Eyehategod.

A death metal act from Newhall, California active since 2012, Montezuma operate in the Los Angeles underground with the punishing directness the genre requires — heavy, methodical, and uninterested in subtlety.

San Francisco's Monuments Collapse have been working the sludge/doom/post-metal axis since 2013, building lengthy, corrosive tracks that mirror the Bay Area's tension between beauty and decay — slow, caustic, and hauntingly cinematic.

Mookerdam is a Los Angeles band dragging death metal into the swamp, combining crushing doom weight with sludge-coated riffs and an abyssal low-end that has been their signature since forming in 2010. The band occupies the uglier, slower end of the death-doom spectrum, where tempo is a weapon and density is the point.