Yosemite National Park Announces winter operations in the Mariposa Grove of Giant Sequoias to begin on Friday, November 30, 2018. https://www.nps.gov/yose/learn/news/yosemite-national-park-announces-winter-operations-in-the-mariposa-grove-of-giant-sequoias-to-begin-on-friday-november-30-2018.htm