Buffalo from the David Meyer ranches in North Dakota and South Dakota remain under quarantine following the illegal use of a poison used to kill prairie dogs.
The quarantine includes about 900 buffalo that grazed in one small pasture of Meyer’s former Cannonball Ranch near the Standing Rock Sioux Reservation as well as on the former Wilder Ranch to the south. The adult buffalo are under quarantine until September, though yearlings were released from the no-sale hold on Jan. 1.
The situation dates to April, when six dead bald eagles and dead bison were discovered at the former Wilder Ranch. An Environmental Protection Agency-led investigation found that 40,000 pounds of Rozol poison had been illegally distributed across more than 5,400 acres on both ranches, according to EPA documents.