Go to the National Pipeline Mapping System public viewer to see what is underground near you!
Other links of interest, mostly Facebook pages - These MAY close this window, so BE CAREFUL!
Grassroots Pipeline Awareness: https://www.facebook.com/groups/732019140194508/
Pipeline 61: https://www.facebook.com/groups/1603146666577958/
350 Madison Climate Action Team (also has a website)
350 Madison website http://350madison.wordpress.com/tar-sands/line-61-map/
Tar Sands Free Midwest: (seems to be based in Chicago) https://www.facebook.com/groups/tarsandsfreemidwest/
Wisconsin Tar Sands Action Coalition: https://www.facebook.com/groups/1437987979790634/