L.A. River Earth Day cleanups — largest such events in U.S. — celebrate 30th year
From the first LA River cleanup in April 1989 when 10 people showed up to the thousands that arrive on the river banks each April, the group has attracted 70,000 volunteers who have collectively removed 700 tons of trash in 29 years, the group reported. … Many argue the cleanup events are the No. 1 reason for the nonprofit’s successes in making the LA River a cause celeb.