An interactive lecture series designed to bring evolving knowledge of the Sierra Nevada to the public and the park. Sponsored by the Yosemite National Park Division of Resources Management and Science.
11th Annual Yosemite Facelift: September 2014
The drop-in volunteer program happens every Wednesday from Memorial Day through Labor Day. Meet a ranger at 9 am in front of the Valley Visitor Center for a three-hour project. Whether it’s your first time to the park or you are a returning visitor, come create new memories and take an active role in protecting your national park.
Stars Over Yosemite
During summer, amateur astronomy clubs host star parties at Glacier Point Amphitheater in cooperation with the National Park Service.
July 10-11: Mount Diablo Astronomical Society