Gary Key & Friends are making waves to Save the (Fraser) River during Riverstock IV, an all-day concert (12 musicians in two different staging areas) 2 p.m.-midnight Saturday, Sept. 6 at the Crooked Creek Saloon in Fraser. Proceeds from admission ($8 for adults $5 for children 12 and under) go toward educational programs through the Colorado Headwaters chapter of Trout Unlimited, the sponsor.