Contributed by eatdogs, Posted by Warner Music Group Tours

Mastodon and Opeth are headed out on a co-headlining tour. The two prog-metal bands will be supported by Ghost. On various nights, either Opeth or Mastodon will close out the night.

Mastodon released The Hunter, Opeth delivered Heritage and Ghost issued Opus Eponymous, all in 2011.

April 4, 2012Portland, MEState TheaterMastodon
April 5, 2012Boston, MAOrpheum TheaterOpeth
April 6, 2012Montreal, QCMetropolisOpeth
April 7, 2012Toronto, ONSony CentreOpeth
April 9, 2012Philadelphia, PAElectric FactoryMastodon
April 10, 2012Wallingford, CTThe DomeMastodon
April 11, 2012New York, NYRoseland BallroomMastodon
April 13, 2012Chicago, ILRiviera TheatreMastodon
April 14, 2012Grand Rapids, MIThe IntersectionMastodon
April 15, 2012Pittsburgh, PAStage AEMastodon
April 16, 2012Knoxville, TNTN TheaterOpeth
April 18, 2012Oklahoma City, OKDiamond BallroomMastodon
April 19, 2012Dallas, TXPalladium BallroomOpeth
April 20, 2012San Antonio, TXBack Stage LiveOpeth
April 21, 2012Corpus Christi, TXConcrete StreetOpeth
April 23, 2012Denver, COFillmore AuditoriumOpeth
April 25, 2012Las Vegas, NVHouse of BluesMastodon
April 26, 2012Los Angeles, CAGibson AmphitheatreOpeth
April 27, 2012Oakland, CAFox TheatreOpeth
April 28, 2012Reno, NVGrand Sierra ResortMastodon
April 30, 2012Seattle, WAThe ParamountOpeth
May 1, 2012Vancouver, BCOrpheum TheatreOpeth
May 3, 2012Edmonton, ABEdmonton Events CenterOpeth
May 4, 2012Calgary, ABMacEwan HallMastodon
May 5, 2012Saskatoon, SKThe OdeonOpeth
May 6, 2012Winnipeg, MBBurton Cummings TheatreOpeth
May 9, 2012Washington, DCThe FillmoreOpeth
May 10, 2012Charlotte, NCThe FillmoreMastodon
May 11, 2012Myrtle Beach, SCHouse of BluesMastodon
May 12, 2012Atlanta, GAMasquerade Music ParkMastodon