links

http://www.nps.gov/nr/travel/underground/

http://www.nationalgeographic.com/features/99/railroad

http://www.cr.nps.gov/nr/travel/underground/

http://www.uncg.edu/~jpbrewer/remember

http://www.greece.K12.ny.us/ath/library/webquests/underground/default.htm

http://www.freedomtrail.ca/home.html

http://www.canada.com/ottawacitizen/features/freedom/index.html

http://www.catawba.k12.nc.us/webquest/harris/

http://www.hobart.k12.in.us/suzquest/main.html

http://www.vermonthistory.org/

http://www.macomb.k12.mi.us/ugrr/jhlesson2.htm