NPS is looking for Archeology volunteers for Yosemite Facelift
This is from their website.
(updated May 31, 2012). Facelift is a volunteer activity in Yosemite National Park, Sept 25-30. This is an annual clean-up in the park sponsored largely by Yosemite climbers, but attended by a wide range of volunteers. The Yosemite Archeology Office has become involved over the years in order to limit damage to archeological sites, and to train volunteers to differentiate historical artifacts from more modern trash. Public education activities include: screening the "trash" for historical cultural material, documenting the artifacts, and involving archeological volunteers from students (grad and undergrad) to CRM professionals. It's fun, and a great way to learn about historical Yosemite archeology. And camping opportunities may be provided. If you're interested, please contact the Facelift Archeology Coordinator, Shelley Szeghi at Shelley_Szeghi@nps.gov or 209-379-1431. The Yosemite Climbing Association website at http://www.yosemiteclimbing.org/ has more information, including some pictures from 2011.