Volunteers are preparing for the Great American River Clean-Up (GARCU), the largest annual clean-up on the American River Parkway (Parkway), according to the American River Parkway Foundation (Parkway Foundation). This year, around 1,000 volunteers will be at more than 20 locations along the Parkway on Sept. 17, 2022 from 9 a.m. to noon removing trash and debris.