Yosemite National Park and the Yosemite Climbing Association invite the public to participate in the Yosemite Facelift, an annual event held to clean up trash and debris from around the park after the busy summer season. https://www.nps.gov/yose/learn/news/yosemite-national-park-to-host-annual-facelift-event-in-honor-of-national-public-lands-day.htm