Each page has basic information for teachers wanting to take their students to
the site, as well as pre and post trip lesson suggestions. The Great
Falls page also has links to photos from the National Archives that were
scanned and put on-line by the school system. Most are unique to the site.
In addition, the Park Service has lesson
plans
available for many National Historic sites. Included is a lesson plan
about the building of the C and O Canal.
Historic
Resource Study of the C and O by Harlan Unrau in the mid-70's. The NPS
has additional documents online a href="
http://www.nps.gov/history/history/park_histories/index.htm">here. (You
will need to scroll down to find the ones for the C and O.)