The fourth installment of the Brown Acid compilation series is coming this year. In case you're unfamiliar, it's a comp put together by stoner rock label RidingEasy Records and Chicago/LA record store Permanent Records that collects obscure '60s and '70s heavy-psych/proto-metal jams. The Fourth Trip drops on 4/20 (naturally), and we're premiering opening track "Leave It," recorded by Kanaan in Texas in 1969. It's a nice dose of fuzz-drenched riffs that fans of anyone from Blue Cheer to Ty Segall are sure to enjoy. Check it out, with the album tracklist, below.

Pre-order the album on vinyl here and digitally here.

Tracklist
Side A:
Kanaan - Leave It
Daingerfield, Texas
1969

Stone Garden - Oceans Inside Me
Lewiston, Idaho
1969

Headstones - Carry Me On
Columbus, Ohio
1975

Wrath - Rock N’ Roll Fever
Canton, Ohio
1975

Bungi - Numbers
Appleton, Wisconsin
1972

Erving Forbush - The Train

Zekes - Comin Back (previously unreleased)
Los Angeles, California
1970

Bad Axe - Coachman
Chicago, Illinois
1973

Ash - Warrant
Melbourne, Australia
1970

Axas - Lucifer
Logansport, Indiana
1975