American doom metal band formed in San Jose, California in 1990 by Matt Pike (guitar), Al Cisneros (bass/vocals), and Chris Hakius (drums, 1990-2011, replaced by Jason Roeder in 2018). Pioneers of stoner doom alongside Kyuss.
Four studio albums: Volume One (1991), Sleep's Holy Mountain (1992), Dopesmoker (2003, originally recorded 1998-1999), and The Sciences (2018, a surprise 4/20 release with no advance promotion). The hour-long single-track Dopesmoker (originally rejected by London Records as too uncommercial) has become a definitive stoner-doom touchstone. Pike has also led High on Fire.
