Three bison have tested positive for anthrax as officials
began testing after four died.
One of the four carcasses has not yet been tested.
The ranch is on reclaimed land owned by Syncrude in the Fort
McMurray tarsands.
Syncrude closed off the area, contained the animal
carcasses and shut down a public viewing point.
Parks Canada confirmed several anthrax cases in Wood
Buffalo National Park over the summer, but it's the first time it has been
detected in the Mildred Lake herd.
