Changing Courses-The History and Future of the Petalma River is the Pealuma Museum's new exhibit starting July 11, with an opening reception on July 12 from 6 to 8 p.m.  This exhibit explores the changes over time to the Petaluma River and plans for its furture.  Join us on July 12 for an evening of music and food while you explore this wonderful exhibit.  Visit www.petalumamuseum.com for more details.