Tumbleweed Music Festival is a free acoustic music festival, going on over Labor Day weekend, September 4-5, in Howard Amon Park, in Richland, WA.  It features 5 outdoor stages, and indoor workshops and dances, all in a beautiful park, under shady trees, on the banks of the Columbia River.  All performances during the day (there are over 100 seperate acts) are free.  On Saturday night, there is a paid concert ($8 general admission/$5 students/seniors), featuring Brad Keeler, The Meteors, Tracy Spring, and The Misty Mamas.