Dunegrass Festival INTERLOCHEN PUBLIC RADIO (Interlochen Public Radio) - What started as a smallish gathering of folk and bluegrass musicians in the village of Empire sixteen years ago has now expanded to attract several thousand people. And it features an array of music styles, including top name acts such as Arlo Guthrie, Richie Havens and Del McCoury. This week on Points North we'll hear from the producer of Dunegrass. Also on the show, an update on the saga to identify what could be an historic French shipwreck in Lake Michigan, dating to the late 1600's. © Copyright 2009, Interlochen Public Radio