I read about this ongoing project and found it simply amazing. There is a colonial period archaeology project going on in Philadelphia that offers volunteer opportunities for public participation.
A Temple University Doctoral candidate, Deirdre Kelleher, runs the project located in Elfreth’s Alley (in the Old City neighborhood of Philadelphia). Elfreth’s Alley dates to 1702 and is considered to be the oldest continuously-occupied street in America. It was surely busy there during the Revolution and one can only imagine the folks that walked down it.
Anyway, the project is digging up certain areas and allows for folks to volunteer to help unearth and document objects. This is truly a rare opportunity to be involved in true historical preservation. Here is a link to the project site and photos from the summer 2013 work:
http://elfrethsalleyarchaeology.blogspot.com/p/contact-information.html
And for a little more on Elfreth’s Alley:
http://www.elfrethsalley.org