Dates have been announced for Mastodon's upcoming Spring headlining tour. The prog-metal band will be supported by Between the Buried and Me, Baroness and Valient Thorr.

April 16, 2010Charleston, SCMusic Farm
April 17, 2010Raleigh, NCLincoln Theater
April 18, 2010Richmond, VAThe National
April 20, 2010Baltimore, MDRams Head
April 21, 2010Sayreville, NJStarland Ballroom
April 22, 2010Hartford, CTWebster
April 23, 2010Worcester, MAPalladium
April 24, 2010Burlington, VTHigher Ground
April 26, 2010Pittsburgh, PAPalace Theater
April 27, 2010Rochester, NYWater Street
April 29, 2010Grand Rapids, MIOrbit Room
April 30, 2010Indianapolis, INVogue
May 1, 2010Columbia, MOBlue Note
May 3, 2010Albuquerque, NMSunshine Theater
May 4, 2010Tucson, AZRialto
May 5, 2010San Diego, CAHouse Of Blues
May 7, 2010Pomona, CAFox
May 8, 2010Oakland, CATBA
May 9, 2010Reno, NVKnitting Factory
May 10, 2010Eugene, ORMcDonald Theater
May 11, 2010Spokane, WAKnitting Factory
May 13, 2010Billings, MTThe Shrine
May 14, 2010Fargo, NDThe Venue
May 15, 2010Omaha, NESokol Hall
May 16, 2010Lawrence, KSLiberty Hall
May 18, 2010Madison, WIOrpheum
May 19, 2010Urbana, ILCanopy Club
May 20, 2010Memphis, TNMinglewood
May 21, 2010Knoxville, TNValarium
May 22, 2010Lexington, KYBusters