The annual Northeast festival Warren Haynes of the Allman BrothersBand and Gov't Mule co-presents is out of the gate with the initial acts in the 2013 lineup. Mountain Jam 9 at Hunter Mountain in Hunter, New York June 6-9 will be headlined by the Mule, Phil Lesh & Friends and Widespread Panic. Other notables in the first round of artists announced include Gary Clark Jr., Primus and Amy Helm. Many additional acts will be added in the coming weeks. Tickets for the tickets are on sale, with early discounts available for a limited time.