World's longest beaver dam foto from helicopter
This aerial foto was taken from a helicopter by Parks Canada - Wood Buffalo National Park- staff (S. Anderson) on July 10 2008. A large beaver lodge can be seen in the centre of the pond. More information and images: http://www.pc.gc.ca/eng/pn-np/nt/woodbuffalo/ne.aspx History, discovery and ecology: http://www.geostrategis.com/p_beavers-longestdam.htm