When North Bay photographers Lance Kuehne and Jerrie Jerné Morago sought out a location for a high-end art gallery in Sonoma County, they searched high and low before coming upon the Riverfront Art Gallery, which marks a decade of showing art on the Petaluma River this month. Operating as a cooperative, the gallery exhibits works from nearly 20 artist members and special guests in rotating shows. This weekend, the Riverfront Art Gallery Ten-Year Anniversary showcases these artists in a gala reception with music by the Rivereens, drinks and art raffles and silent auctions to benefit Petaluma High School’s art department. Saturday, Sept. 9, at Riverfront Art Gallery, 132 Petaluma Blvd. N., Petaluma. 5pm. 707.775.4278.