Congratulations to the Challenge Winners for the 20th Annual Clean Your Streams Day! These self-reported challenges encourage friendly competition between volunteer groups while inspiring them to have the largest positive impact possible on our streams.  This year, the Challenges were a little different than in years past. We awarded winners for both youth and collegiate groups in the following categories: Most Volunteers, Battle of the Bags, and Awesome Effort. We also awarded River Partner Certifications to corporate and organization groups based on the number of volunteers they brought with them on Clean Your Streams Day. Lastly, we recognized CYS Champions, or groups that have volunteered with or supported us over the past 20 years of Clean Your Streams. See the list of CYS Champions here. And check out the official list of our challenge winners and River Partners on our website!