Long Beach, California's Red River Massacre trade in sludge-soaked stoner metal that bakes in Southern California's sun-bleached intensity and the corrosive weight of the city's underground. Since 2018, they've pursued a slow, oppressive heaviness that owes as much to Southern sludge tradition as it does to desert-rock psychedelia.

Los Angeles outfit Rowsdower, active since 2011, occupies the slow and swampy intersection of sludge, stoner, and doom metal — thick riffs, deliberate tempos, and the kind of hazy, heavy atmosphere that the LA underground has cultivated for decades. Their sound favors groove and weight over speed.

Oakland, California's Saviours have been one of the Bay Area's most reliably heavy bands since 2005, fusing the fuzzed-out weight of stoner metal with the aggressive propulsion of thrash and the melodic confidence of classic heavy metal. Their records feel like desert highway riffs played at combat speed — sun-baked, riff-driven, and deeply indebted to the California heavy music tradition.

San Francisco's Shrinebuilder are a supergroup formed in 2009 from members of Sleep, Neurosis, The Melvins, and Scott Kelly's solo projects, combining stoner and doom metal traditions into monolithic, lysergic compositions that draw from the full weight of their members' combined legacies.

Sacramento's Sky Pig have been combining stoner, sludge, and doom metal since 2018, trafficking in slow-grinding riffs soaked in fuzz and feedback that nod equally to Electric Wizard and Saint Vitus. The band occupies the fertile Central Valley heavy underground, where volume is treated as a virtue unto itself.

Legendary San Jose stoner/doom metal institution formed in 1992, Sleep defined a generation of slow, cannabis-scorched heaviness with records like Holy Mountain and the monolithic single-track Dopesmoker. Their hypnotic, Sabbath-descended dirges became the blueprint for an entire strain of heavy, riff-obsessed music that continues to resonate worldwide.

Oakland stoner metal outfit formed in 2007, drawing from the Bay Area's rich tradition of heavy, fuzz-drenched rock with a particularly thick low-end sensibility.

Los Angeles band formed in 2003 that began as a provocative nu-metal act before evolving toward heavier stoner and hard rock territory, known for theatrical stage performances and confrontational imagery.

Solar Haze is a stoner metal band from West Covina, California, formed in 2019, trafficking in heavy, fuzzed-out riffs and a sun-scorched atmosphere that suits both its Southern California origins and the genre's cosmic sensibility.