Yellowstone National Park, WY
A large bison herd near Mud Volcano just swam across the Yellowstone River. This bull was hot on the trail of a cow bison. Bison bulls are very unpredictable during the mating season.
YNPBI222598BisonbuffalotatankarunningchargingYellowstone National ParkHayden ValleyWYWyomingKen Meronek
Copyrighted and All Rights Reserved Ken Meronek 2010