Kyuss
As Josh Homme's main group Queens of the Stone Age continues to stray farther and farther away from their awesome roots, his first band will always kick ass. Birthed from the barren southwest, these desert punks continue to fill my speakers with their psychedelic brand of Sabbath-esque stoner rock.

Wellwater Conspiracy
What was initially a sideproject of a sideproject, Matt Cameron (Soundgarden) and John McBain (Monster Magnet) (and Ben Shepherd of Soundgarden for the first album) continued this neo-psychedelic band for over ten years. Album guests included Eddie Vedder of Pearl Jam and Josh Homme (as mentioned above).

Earth
Earth was initially a drugged out, minimalistic drone doom band headed by Dylan Carlson, who most famously was a friend of Kurt Cobain and gave him the shotgun he used to commit suicide. After being absent for nearly a decade from the music scene, Carlson cleaned up and reformed Earth; still minimalistic as ever, but this time as a post rock (perhaps even "post country") outfit.