August 25-27. Now in its 10th year, this three-day music festival started out to honor local Marlboro resident "Big Lee" Mazzola on his 50th birthday. Jam-heavy but with flavors of contemporary folk rock as well, the outdoor blowout now encompasses two stages and also features food and craft vendors, camping, acoustic sessions, and other activities. Performing this time around are Zach Deputy, the NYChillharmonic, Spiritual Rez, Sophistafunk, the Big Takeover, Primate Fiasco, Cosmal, Junket, Teddy Midnight, Skydaddy, Alpha Male Gorillas, the Deadbeats, Space Carnival, David Kraii, Los Thujones, the Grape and the Grain, Fred Zeppelin, Still Alive taking on a tribute to Pearl Jam's Ten, and others. Check website for schedule and ticket prices. Marlboro. Mazzstock.com.