THE GREAT LA RIVER CLEANUP 2018 Great LA River Clean Up / La Gran Limpieza is back! The largest urban River cleanup in America starts April 2018. For 29 years, FoLAR and our fellow Angelenos have cleaned the Los Angeles River and protected our oceans from trash and refuse. In 2017 we mobilized 10,000 volunteers to remove 100 tons of trash. Help us make 2018 even bigger. Join the movement this Earth Month as we come together to restore habitat, protect nature, and build community through the power of collective action.