I found these Boston Marathon Course Maps neat.. http://www.boston.com/sports/marathon/course/ http://www.boston.com/sports/marathon/, check out the course map/race day guide midway down on the left. http://www.csurun.org/maps/BAA/ Not a Map...but really neat http://www.thebostonchannel.com/bostonmarathon/index.html http://www.chiff.com/recreation/sports/boston-marathon.htm