Red Rocks Amphitheatre got a rare deep clean of the venue's sandstone and concrete surfaces. The Germany company that did the work, Karcher, has its U.S. headquarters in Aurora. The project is part of Karcher's Cultural Sponsorship Cleaning Initiative, which has also included Mount Rushmore, The Space Needle and the Christ the Redeemer statue. More local videos here: https://youtube.com/@9news Subscribe to NEXT: https://youtube.com/@Nexton9NEWS Stay connected: 9NEWS Website: https://www.9news.com/ Facebook: https://www.facebook.com/ilike9news X: https://twitter.com/9NEWS Instagram: https://www.instagram.com/9newsdenver/ Download the 9NEWS App: https://www.9news.com/appredirect/ Sign up for the 9NEWSLETTER: https://www.9news.com/email 9NEWS (KUSA) is located in Denver, Colorado.